Common use of SECURITIES AND FUTURES AUTHORITY Clause in Contracts

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 - - - - - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. -------------------------------------------------------------------------------- Page 18 Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) ------------- -------------- ------------- -------------- ------------- -------------- ------------- -------------- Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 76 12.56 10.80 10.80 10.80 10.80 10.80 10.80 77 12.98 11.16 11.16 11.16 11.16 11.16 11.16 78 12.56 10.80 10.80 10.80 10.80 10.80 10.80 79 12.56 10.80 10.80 10.80 10.80 10.80 10.80 80 12.98 11.16 11.16 11.16 11.16 11.16 11.16 81 12.56 10.80 10.80 10.80 10.80 10.80 10.80 82 12.68 11.16 11.16 11.16 11.16 11.16 11.16 83 11.20 10.80 10.80 10.80 10.80 10.80 10.80 84 11.21 10.80 10.80 10.80 10.80 10.80 10.80 85 12.42 11.95 11.95 11.95 11.95 11.95 11.95 86 11.23 10.80 10.80 10.80 10.80 10.80 10.80 87 11.62 11.15 11.15 11.15 11.15 11.15 11.15 88 11.26 10.79 10.79 10.79 10.79 10.79 10.79 89 11.65 11.15 11.15 11.15 11.15 11.15 11.15 90 11.29 10.79 10.79 10.79 10.79 10.79 10.79 91 11.30 10.79 10.79 10.79 10.79 10.79 10.79 92 11.70 11.15 11.15 11.15 11.15 11.15 11.15 93 11.33 10.79 10.79 10.79 10.79 10.79 10.79 94 11.73 11.15 11.15 11.15 11.15 11.15 11.15 95 11.37 10.79 10.79 10.79 10.79 10.79 10.79 96 11.38 10.79 10.79 10.79 10.79 10.79 10.79 97 12.19 11.53 11.53 11.53 11.53 11.53 11.53 98 11.42 10.79 10.79 10.79 10.79 10.79 10.79 99 11.82 11.14 11.14 11.14 11.14 11.14 11.14 100 11.46 10.78 10.78 10.78 10.78 10.78 10.78 101 11.86 11.14 11.14 11.14 11.14 11.14 11.14 102 11.49 10.78 10.78 10.78 10.78 10.78 - 103 11.51 10.78 10.78 10.78 10.78 10.78 - 104 11.92 11.14 11.14 11.14 11.14 11.14 - 105 11.56 10.78 10.78 10.78 10.78 10.78 - 106 11.97 11.14 11.14 11.14 11.14 11.14 - 107 11.60 10.78 10.78 10.78 10.78 10.78 - 108 11.63 10.78 10.78 10.78 10.78 10.78 - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%109 12.90 11.93 11.93 11.93 11.93 11.93 - 110 11.67 10.78 10.78 10.78 10.78 10.78 - 111 12.09 11.14 11.14 11.14 11.14 11.14 - 112 11.72 10.78 10.78 10.78 10.78 10.78 - 113 12.14 11.14 11.14 11.14 11.14 11.14 -

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. -------------------------------------------------------------------------------- Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) --------- ------------ ------------ ----------- ----------- ----------- ----------- ----------- Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 111 12.07 11.12 11.12 11.12 11.12 11.12 11.12 112 12.10 11.12 11.12 11.12 11.12 11.12 11.12 113 13.43 12.31 12.31 12.31 12.31 12.31 12.31 114 12.17 11.11 11.11 11.11 11.11 11.11 11.11 115 12.61 11.48 11.48 11.48 11.48 11.48 11.48 116 12.23 11.11 11.11 11.11 11.11 11.11 - 117 12.68 11.48 11.48 11.48 11.48 11.48 - 118 12.30 11.11 11.11 11.11 11.11 11.11 - 119 12.34 11.11 11.11 11.11 11.11 11.11 - 120 12.79 11.48 11.48 11.48 11.48 11.48 - 121 12.41 11.11 11.11 11.11 11.11 11.11 - 122 12.87 11.48 11.48 11.48 11.48 11.48 - 123 12.49 11.11 11.11 11.11 11.11 11.11 - 124 12.53 11.11 11.11 11.11 11.11 11.11 - 125 13.92 12.30 12.30 12.30 12.30 12.30 - 126 12.62 11.11 11.11 11.11 11.11 11.11 - 127 13.09 11.48 11.48 11.48 11.48 11.48 - 128 12.71 11.11 11.11 11.11 11.11 - - 129 13.18 11.48 11.48 11.48 11.48 - - 130 12.80 11.11 11.11 11.11 11.11 - - 131 12.85 11.11 11.11 11.11 11.11 - - 132 13.33 11.47 11.47 11.47 11.47 - - 133 12.96 11.10 11.10 11.10 11.10 - - 134 13.44 11.47 11.47 11.47 11.47 - - 135 13.06 11.10 11.10 11.10 11.10 - - 136 13.12 11.10 11.10 11.10 - - - 137 14.59 12.29 12.29 12.29 - - - 138 13.24 11.10 11.10 11.10 - - - 139 13.74 11.47 11.47 11.47 - - - 140 13.36 11.10 11.10 11.10 - - - 141 13.87 11.47 11.47 11.47 - - - 142 13.49 11.10 11.10 11.10 - - - 143 13.56 11.10 11.10 - - - - 144 14.08 11.47 11.47 - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 - 145 13.70 11.10 11.10 - - - - 146 14.23 11.47 11.47 - - - - 147 13.85 11.10 11.10 - - - - 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) ----------------- ---------------- -------------- ---------------- ---------------- --------------- --------------- --------------- Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 115 11.99 10.91 10.91 10.91 10.91 10.91 - 116 12.42 11.27 11.27 11.27 11.27 11.27 - 117 12.05 10.91 10.91 10.91 10.91 10.91 - 118 12.49 11.27 11.27 11.27 11.27 11.27 - 119 12.12 10.91 10.91 10.91 10.91 10.91 - 120 12.16 10.91 10.91 10.91 10.91 - - 121 13.50 12.08 12.08 12.08 12.08 - - 122 12.23 10.91 10.91 10.91 10.91 - - 123 12.68 11.27 11.27 11.27 11.27 - - 124 12.31 10.91 10.91 10.91 10.91 - - 125 12.77 11.27 11.27 11.27 11.27 - - 126 12.40 10.91 10.91 10.91 10.91 - - 127 12.44 10.91 10.91 10.91 10.91 - - 128 12.90 11.27 11.27 11.27 11.27 - - 129 12.53 10.91 10.91 10.91 10.91 - - 130 13.00 11.27 11.27 11.27 11.27 - - 131 12.63 10.91 10.91 10.91 10.91 - - 132 12.68 10.91 10.91 10.91 - - - 133 14.09 12.07 12.07 12.07 - - - 134 12.78 10.91 10.91 10.91 - - - 135 13.26 11.27 11.27 11.27 - - - 136 12.89 10.91 10.91 10.91 - - - 137 13.38 11.27 11.27 11.27 - - - 138 13.00 10.91 10.91 10.91 - - - 139 13.06 10.91 10.91 10.91 - - - 140 13.56 11.27 11.27 - - - - 141 13.19 10.91 10.91 - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%- 142 13.69 11.27 11.27 - - - - 143 13.32 10.91 10.91 - - - - 144 13.38 10.91 10.91 - - - - 145 14.38 11.66 11.66 - - - - 146 13.52 10.91 10.91 - - - - 147 14.05 11.27 11.27 - - - - 148 13.67 10.91 10.91 - - - - 149 14.21 11.27 11.27 - - - - 150 13.83 10.91 10.91 - - - - 151 13.91 10.91 10.91 - - - - 152 14.46 11.27 11.27 - - - -

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) ----------------- ---------------- -------------- ---------------- ---------------- --------------- --------------- --------------- Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 77 11.59 11.30 11.30 11.30 11.30 11.30 11.30 78 11.22 10.94 10.94 10.94 10.94 10.94 10.94 79 11.24 10.93 10.93 10.93 10.93 10.93 10.93 80 11.62 11.30 11.30 11.30 11.30 11.30 11.30 81 11.26 10.93 10.93 10.93 10.93 10.93 10.93 82 11.65 11.30 11.30 11.30 11.30 11.30 11.30 83 11.29 10.93 10.93 10.93 10.93 10.93 10.93 84 11.30 10.93 10.93 10.93 10.93 10.93 10.93 85 12.53 12.10 12.10 12.10 12.10 12.10 12.10 86 11.33 10.93 10.93 10.93 10.93 10.93 10.93 87 11.73 11.29 11.29 11.29 11.29 11.29 11.29 88 11.36 10.93 10.93 10.93 10.93 10.93 10.93 89 11.76 11.29 11.29 11.29 11.29 11.29 11.29 90 11.39 10.92 10.92 10.92 10.92 10.92 10.92 91 11.41 10.92 10.92 10.92 10.92 10.92 10.92 92 11.81 11.29 11.29 11.29 11.29 11.29 11.29 93 11.45 10.92 10.92 10.92 10.92 10.92 10.92 94 11.85 11.28 11.28 11.28 11.28 11.28 11.28 95 11.48 10.92 10.92 10.92 10.92 10.92 10.92 96 11.50 10.92 10.92 10.92 10.92 10.92 10.92 97 12.32 11.67 11.67 11.67 11.67 11.67 11.67 98 11.54 10.92 10.92 10.92 10.92 10.92 10.92 99 11.95 11.28 11.28 11.28 11.28 11.28 11.28 100 11.59 10.92 10.92 10.92 10.92 10.92 10.92 101 11.99 11.28 11.28 11.28 11.28 11.28 11.28 102 11.63 10.92 10.92 10.92 10.92 10.92 10.92 103 11.65 10.91 10.91 10.91 10.91 10.91 10.91 104 12.07 11.28 11.28 11.28 11.28 11.28 11.28 105 11.70 10.91 10.91 10.91 10.91 10.91 10.91 106 12.12 11.28 11.28 11.28 11.28 11.28 - 107 11.75 10.91 10.91 10.91 10.91 10.91 - 108 11.78 10.91 10.91 10.91 10.91 10.91 - 109 13.07 12.08 12.08 12.08 12.08 12.08 - 110 11.83 10.91 10.91 10.91 10.91 10.91 - 111 12.26 11.27 11.27 11.27 11.27 11.27 - 112 11.89 10.91 10.91 10.91 10.91 10.91 - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%113 12.32 11.27 11.27 11.27 11.27 11.27 - 114 11.95 10.91 10.91 10.91 10.91 10.91 -

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 A Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 B Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) Period Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 - - - - - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 ------ ---------- ----------- ----------- ---------- 70 11.31 10.21 10.21 10.21 71 11.69 10.53 10.53 10.53 72 11.32 10.22 10.22 10.22 73 11.32 10.23 10.23 10.23 74 12.54 11.24 11.24 11.24 75 11.33 10.23 10.23 10.23 76 11.72 10.55 10.55 10.55 77 11.34 10.24 10.24 10.24 78 11.73 10.56 10.56 10.56 79 11.38 10.27 10.27 10.27 80 11.45 10.33 10.33 10.33 81 11.84 10.51 10.51 10.51 82 11.46 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.20 10.20 83 11.85 10.52 10.52 10.52 84 11.47 10.20 10.20 10.20 85 11.48 10.21 10.21 10.21 86 12.71 11.24 11.24 11.24 87 11.49 10.22 10.22 10.22 88 11.88 10.54 10.54 10.54 89 11.50 10.22 10.22 10.22 90 11.89 10.55 10.55 10.55 91 11.51 10.23 10.23 10.23 92 11.52 10.24 10.24 10.24 93 11.90 10.56 10.56 10.56 94 11.13 10.24 10.24 10.24 95 10.48 10.57 10.57 10.55 96 10.15 10.25 10.25 10.24 97 10.17 10.26 10.26 10.24 98 10.89 10.92 10.92 10.91 99 10.21 10.22 10.22 10.20 100 10.57 10.54 10.54 10.52 101 10.24 10.23 10.23 10.21 102 10.60 10.55 10.55 10.53 103 10.28 9.66 9.66 9.66 104 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 9.66 9.66 9.66 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance Certificate Principal Balance. 2 Run to maturity call assuming 100% PPC, no losses losses, and a 1 1-month/6-month/12-month LIBOR, 1-year CMT and 6 month LIBOR 11th district COFI rate of 20%.

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) ----------------- ---------------- -------------- ---------------- ---------------- --------------- --------------- --------------- Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 153 14.08 10.91 10.91 - - - - 154 14.64 11.28 11.28 - - - - 155 14.26 10.91 10.91 - - - - 156 14.36 10.91 10.91 - - - - 157 16.00 12.08 12.08 - - - - 158 14.55 10.91 10.91 - - - - 159 15.14 11.28 11.28 - - - - 160 14.75 10.92 10.92 - - - - 161 15.36 11.28 11.28 - - - - 162 14.97 10.92 - - - - - 163 15.08 10.92 - - - - - 164 15.71 11.28 - - - - - 165 15.32 10.92 - - - - - 166 15.95 11.29 - - - - - 167 15.57 10.92 - - - - - 168 15.69 10.92 - - - - - 169 17.52 12.10 - - - - - 170 15.96 10.93 - - - - - 171 16.64 11.29 - - - - - 172 16.25 10.93 - - - - - 173 16.94 11.29 - - - - - 174 16.54 10.93 - - - - - 175 16.70 10.93 - - - - - 176 17.42 11.30 - - - - - 177 17.02 10.94 - - - - - 178 17.79 - - - - - - 179 17.48 - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%- - - - - 180 17.77 - - - - - - 181 20.02 - - - - - - 182 18.40 - - - - - - 183 19.37 - - - - - - 184 19.12 - - - - - - 185 20.16 - - - - - - 186 19.93 - - - - - - 187 20.39 - - - - - - 188 21.57 - - - - - - 189 21.40 - - - - - - 190 22.70 - - - - - -

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. ------------------------------------------------------------------------------- Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 A-1 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) ------ ---------- ----------- ----------- ----------- ----------- Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 - - - - - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 72 12.70 10.73 10.73 10.73 10.73 73 12.30 10.41 10.41 10.41 10.41 74 12.71 10.74 10.74 10.74 10.74 75 12.31 10.41 10.41 10.41 10.41 76 12.32 10.42 10.42 10.42 10.42 77 12.91 10.91 10.91 10.91 10.91 78 12.49 10.59 10.59 10.59 10.59 79 12.92 10.92 10.92 10.92 10.92 80 12.50 10.59 10.59 10.59 10.59 81 12.51 10.60 10.60 10.60 10.60 82 13.86 11.67 11.67 11.67 11.67 83 12.52 10.60 10.60 10.60 10.60 84 12.94 10.94 10.94 10.94 10.94 85 12.53 10.61 10.61 10.61 10.61 86 12.95 10.95 10.95 10.95 10.95 87 12.54 10.62 10.62 10.62 10.62 88 12.55 10.62 10.62 10.62 10.62 89 12.97 10.96 10.96 10.96 10.96 90 12.56 10.63 10.63 10.63 10.63 91 12.98 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 10.97 10.97 10.97 92 12.57 10.64 10.64 10.64 10.64 93 12.58 10.64 10.64 10.64 10.64 94 13.45 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%11.34 11.34 11.34 95 12.59 10.65 10.65 10.65 10.65 96 13.01 10.99 10.99 10.99 10.99 97 12.60 10.66 10.66 10.66 10.66 98 13.03 11.00 11.00 11.00 11.00 99 12.61 10.67 10.67 10.67 10.67 100 12.62 10.67 10.67 10.67 10.67 101 13.04 11.01 11.01 11.01 11.01 102 12.63 10.68 10.68 10.68 10.68 103 13.06 11.02 11.02 11.02 11.02 104 12.64 10.69 10.69 10.69 10.69 105 12.21 10.06 10.06 10.06 10.06

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 111 11.84 10.96 10.96 10.96 10.96 10.96 10.96 112 12.27 11.33 11.33 11.33 11.33 11.33 11.33 113 11.90 10.96 10.96 10.96 10.96 10.96 - 114 12.33 11.33 11.33 11.33 11.33 11.33 - 115 11.97 10.96 10.96 10.96 10.96 10.96 - 116 12.01 10.96 10.96 10.96 10.96 10.96 - 117 13.33 12.13 12.13 12.13 12.13 12.13 - 118 12.08 10.96 10.96 10.96 10.96 10.96 - 119 12.52 11.32 11.32 11.32 11.32 11.32 - 120 12.16 10.96 10.96 10.96 10.96 10.96 - 121 12.60 11.32 11.32 11.32 11.32 11.32 - 122 12.24 10.96 10.96 10.96 10.96 10.96 - 123 12.28 10.95 10.95 10.95 10.95 10.95 - 124 12.73 11.32 11.32 11.32 11.32 11.32 - 125 12.37 10.95 10.95 10.95 10.95 10.95 - 126 12.83 11.32 11.32 11.32 11.32 - - 127 12.46 10.95 10.95 10.95 10.95 - - 128 12.51 10.95 10.95 10.95 10.95 - - 129 13.90 12.12 12.12 12.12 12.12 - - 130 12.61 10.95 10.95 10.95 10.95 - - 131 13.08 11.32 11.32 11.32 11.32 - - 132 12.71 10.95 10.95 10.95 10.95 - - 133 13.19 11.31 11.31 11.31 11.31 - - 134 12.82 10.95 10.95 10.95 10.95 - - 135 12.88 10.95 10.95 10.95 10.95 - - 136 13.37 11.31 11.31 11.31 11.31 - - 137 13.00 10.95 10.95 10.95 - - - 138 13.49 11.31 11.31 11.31 - - - 139 13.12 10.95 10.95 10.95 - - - 140 13.19 10.95 10.95 10.95 - - - 141 14.68 12.12 12.12 12.12 - - - 142 13.32 10.95 10.95 10.95 - - - 143 13.84 11.31 11.31 11.31 - - - 144 13.47 10.95 10.95 10.95 - - - 145 13.99 11.31 11.31 11.31 - - - 146 13.62 10.95 10.95 - - - - 147 13.70 10.95 10.95 - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 - 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) ------------- -------------- ------------- -------------- ------------- -------------- ------------- -------------- Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 - - - - - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 38 11.09 10.28 10.28 10.28 10.27 10.27 10.27 39 11.55 10.73 10.73 10.73 10.73 10.73 10.73 40 11.76 10.18 10.18 10.18 10.18 10.18 10.18 41 12.15 10.51 10.51 10.51 10.51 10.51 10.51 42 11.76 10.18 10.18 10.18 10.18 10.18 10.18 43 11.78 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 10.20 10.20 10.20 10.20 10.20 44 12.21 10.57 10.57 10.57 10.57 10.57 10.57 45 11.94 10.22 10.22 10.22 10.22 10.22 10.22 46 12.62 10.83 10.83 10.83 10.83 10.83 10.83 47 12.21 10.48 10.48 10.48 10.48 10.48 10.48 48 12.21 10.48 10.48 10.48 10.48 10.48 10.48 49 13.08 11.23 11.23 11.23 11.23 11.23 11.23 50 12.26 10.53 10.53 10.53 10.53 10.53 10.53 51 12.79 11.01 11.01 11.01 11.01 11.01 11.01 52 12.39 10.66 10.66 10.66 10.66 10.66 10.66 53 12.80 11.01 11.01 11.01 11.01 11.01 11.01 54 12.39 10.66 10.66 10.66 10.66 10.66 10.66 55 12.40 10.67 10.67 10.67 10.67 10.67 10.67 56 12.83 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%11.04 11.04 11.04 11.04 11.04 57 12.49 10.77 10.77 10.77 10.77 10.77 10.77 58 13.00 11.19 11.19 11.19 11.19 11.19 11.19 59 12.58 10.82 10.82 10.82 10.82 10.82 10.82 60 12.58 10.82 10.82 10.82 10.82 10.82 10.82 61 13.92 11.98 11.98 11.98 11.98 11.98 11.98 62 12.57 10.82 10.82 10.82 10.82 10.82 10.82 63 12.99 11.18 11.18 11.18 11.18 11.18 11.18 64 12.57 10.82 10.82 10.82 10.82 10.82 10.82 65 12.99 11.18 11.18 11.18 11.18 11.18 11.18 66 12.57 10.82 10.82 10.82 10.82 10.82 10.82 67 12.57 10.81 10.81 10.81 10.81 10.81 10.81 68 12.99 11.17 11.17 11.17 11.17 11.17 11.17 69 12.57 10.81 10.81 10.81 10.81 10.81 10.81 70 12.99 11.17 11.17 11.17 11.17 11.17 11.17 71 12.57 10.81 10.81 10.81 10.81 10.81 10.81 72 12.57 10.81 10.81 10.81 10.81 10.81 10.81 73 13.91 11.97 11.97 11.97 11.97 11.97 11.97 74 12.57 10.81 10.81 10.81 10.81 10.81 10.81 75 12.98 11.17 11.17 11.17 11.17 11.17 11.17

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) ----------------- ---------------- -------------- ---------------- ---------------- --------------- --------------- --------------- Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 - - - - - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 9.96 9.86 9.86 9.86 9.86 9.86 9.86 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 9.06 8.96 8.96 8.96 8.96 8.96 8.96 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 9.37 9.25 9.25 9.25 9.25 9.25 9.25 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 9.18 9.06 9.06 9.06 9.06 9.06 9.06 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 9.41 9.28 9.28 9.28 9.28 9.28 9.28 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 9.18 9.06 9.06 9.06 9.06 9.06 9.06 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9.18 9.06 9.06 9.06 9.06 9.06 9.06 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9.41 9.28 9.28 9.28 9.28 9.28 9.28 9 9.19 9.06 9.06 9.06 9.06 9.06 9.06 10 9.42 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 9.28 9.28 9.28 9.28 9.28 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 9.19 9.05 9.05 9.05 9.05 9.05 9.05 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 9.20 9.05 9.05 9.05 9.05 9.05 9.05 13 9.94 9.77 9.77 9.77 9.77 9.77 9.77 14 9.21 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 9.05 9.05 9.05 9.05 9.05 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 9.44 9.28 9.28 9.28 9.28 9.28 9.28 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 9.21 9.05 9.05 9.05 9.05 9.05 9.05 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 9.45 9.28 9.28 9.28 9.28 9.28 9.28 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 9.22 9.05 9.05 9.05 9.05 9.05 9.05 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 9.23 9.05 9.05 9.05 9.05 9.05 9.05 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 9.46 9.28 9.28 9.28 9.28 9.28 9.28 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 9.24 9.06 9.06 9.06 9.06 9.06 9.06 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 9.97 9.81 9.81 9.81 9.81 9.81 9.81 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 9.72 9.56 9.56 9.56 9.56 9.56 9.56 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 9.73 9.56 9.56 9.56 9.56 9.56 9.56 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 10.56 10.37 10.37 10.37 10.37 10.37 10.37 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 9.74 9.56 9.56 9.56 9.56 9.56 9.56 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 10.01 9.82 9.82 9.82 9.82 9.82 9.82 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 10.22 10.07 10.07 10.07 10.07 10.07 10.07 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 10.52 10.35 10.35 10.35 10.35 10.35 10.35 30 10.24 10.06 10.06 10.06 10.06 10.06 10.06 31 10.25 10.06 10.06 10.06 10.06 10.06 10.06 32 10.54 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.34 10.34 10.34 10.34 10.34 33 10.27 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 10.07 10.07 10.07 10.07 10.07 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 10.84 10.54 10.54 10.54 10.54 10.54 10.54 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 10.53 10.23 10.23 10.23 10.23 10.23 10.23 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%10.54 10.23 10.23 10.23 10.23 10.23 10.23 37 18.55 11.23 11.23 11.23 11.23 11.23 11.23 38 10.44 10.23 10.23 10.23 10.22 10.22 10.22

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 A Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 B Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) Period Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ ------ ---------- ----------- ----------- ---------- 0 - - - - - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 10.11 9.94 9.94 9.94 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 9.41 9.26 9.26 9.26 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 9.04 8.90 8.90 8.90 4 9.32 9.16 9.16 9.16 5 9.15 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 8.99 8.99 6 9.37 9.21 9.21 9.21 7 9.17 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9.00 9.00 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9.18 9.01 9.01 9.01 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 9.40 9.23 9.23 9.23 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 9.20 9.02 9.02 9.02 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 9.43 9.24 9.24 9.24 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 9.23 9.04 9.04 9.04 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 9.29 9.09 9.09 9.09 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 10.01 9.79 9.79 9.79 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 9.32 9.11 9.11 9.11 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 9.59 9.37 9.37 9.37 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 9.26 9.04 9.04 9.04 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 9.56 9.32 9.32 9.32 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 9.38 9.14 9.14 9.14 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 9.43 9.18 9.18 9.18 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 9.69 9.42 9.42 9.42 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 9.50 9.23 9.23 9.23 23 10.15 9.87 9.87 9.87 24 9.97 9.68 9.68 9.68 25 10.04 9.74 9.74 9.74 26 10.88 10.54 10.54 10.54 27 10.12 9.80 9.80 9.80 28 10.41 10.07 10.07 10.07 29 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 9.86 9.86 30 10.53 10.16 10.16 10.16 31 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 9.97 9.97 9.97 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 10.39 10.01 10.01 10.01 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 10.72 10.31 10.31 10.31 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%10.50 10.09 10.09 10.09

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. -------------------------------------------------------------------------------- Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) A-3 Cap (%) A-4 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) ------ ----------- ----------- ----------- ----------- ----------- ----------- ----------- ----------- ----------- Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ Actual/360 Actual/360 0 - - - - - - - -- -- -- -- -- -- -- -- -- 1 9.94 9.97 9.97 9.81 9.81 9.81 9.81 9.81 9.81 2 9.25 9.29 9.29 9.13 9.13 9.13 9.13 9.13 9.13 3 9.50 9.55 9.55 9.38 9.38 9.38 9.38 9.38 9.38 4 9.29 9.34 9.34 9.17 9.17 9.17 9.17 9.17 9.17 5 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 9.57 9.57 9.39 9.39 9.39 9.39 9.39 9.39 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 9.30 9.35 9.35 9.17 9.17 9.17 9.17 9.17 9.17 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9.30 9.35 9.35 9.17 9.17 9.17 9.17 9.17 9.17 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9.53 9.58 9.58 9.39 9.39 9.39 9.39 9.39 9.39 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 9.31 9.36 9.36 9.17 9.17 9.17 9.17 9.17 9.17 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 9.54 9.59 9.59 9.39 9.39 9.39 9.39 9.39 9.39 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 9.32 9.37 9.37 9.17 9.17 9.17 9.17 9.17 9.17 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 9.33 9.38 9.38 9.17 9.17 9.17 9.17 9.17 9.17 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 10.06 10.12 10.12 9.89 9.89 9.89 9.89 9.89 9.89 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 9.34 9.39 9.39 9.17 9.17 9.17 9.17 9.17 9.17 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 9.57 9.62 9.62 9.39 9.39 9.39 9.39 9.39 9.39 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 9.35 9.40 9.40 9.17 9.17 9.17 9.17 9.17 9.17 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 9.58 9.64 9.64 9.39 9.39 9.39 9.39 9.39 9.39 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 9.36 9.41 9.41 9.17 9.17 9.17 9.17 9.17 9.17 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 9.37 9.42 9.42 9.17 9.17 9.17 9.17 9.17 9.17 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 9.62 9.68 9.68 9.41 9.41 9.41 9.41 9.41 9.41 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 9.42 9.47 9.47 9.20 9.20 9.20 9.20 9.20 9.20 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 10.54 10.49 10.49 10.21 10.21 10.21 10.21 10.21 10.21 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 10.28 -- 10.23 9.95 9.95 9.95 9.95 9.95 9.95 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 10.29 -- 10.24 9.95 9.95 9.95 9.95 9.95 9.95 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 11.16 -- 11.11 10.79 10.79 10.79 10.79 10.79 10.79 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 10.32 -- 10.27 9.97 9.97 9.97 9.97 9.97 9.97 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 10.61 -- 10.56 10.24 10.24 10.24 10.24 10.24 10.24 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 10.57 -- 10.46 10.14 10.14 10.14 10.14 10.14 10.14 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 10.87 -- 10.77 10.42 10.42 10.42 10.42 10.42 10.42 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 10.59 -- 10.49 10.14 10.14 10.14 10.14 10.14 10.14 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 10.64 -- 10.53 10.16 10.16 10.16 10.16 10.16 10.16 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 10.98 -- 10.87 10.48 10.48 10.48 10.48 10.48 10.48 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 10.87 -- 10.75 10.35 10.35 10.35 10.35 10.35 10.35 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 11.14 -- 10.96 10.53 10.53 10.53 10.53 10.53 10.53 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 10.83 -- 10.66 10.22 10.22 10.22 10.22 10.22 10.22 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%10.85 -- 10.68 10.22 10.22 10.22 10.22 10.22 10.22 37 23.55 -- 23.35 11.24 11.24 11.24 11.24 11.24 11.24 38 11.27 -- 11.09 10.28 10.28 10.28 10.27 10.27 10.27

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) A-3 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) Period Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ Actual/360 ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- 0 - - - - - - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 10.73 10.73 10.49 10.49 10.49 10.49 10.49 10.49 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.65 9.65 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 3 9.43 9.43 9.21 9.21 9.21 9.21 9.21 9.21 4 9.43 9.43 9.21 9.21 9.21 9.21 9.21 9.21 5 9.90 9.90 9.67 9.67 9.67 9.67 9.67 9.67 6 9.44 9.44 9.21 9.21 9.21 9.21 9.21 9.21 7 9.67 9.67 9.43 9.43 9.43 9.43 9.43 9.43 8 9.45 9.45 9.21 9.21 9.21 9.21 9.21 9.21 9 9.68 9.68 9.43 9.43 9.43 9.43 9.43 9.43 10 9.46 9.46 9.21 9.21 9.21 9.21 9.21 9.21 11 9.46 9.46 9.21 9.21 9.21 9.21 9.21 9.21 12 9.70 9.70 9.43 9.43 9.43 9.43 9.43 9.43 13 9.48 9.48 9.21 9.21 9.21 9.21 9.21 9.21 14 9.72 9.72 9.43 9.43 9.43 9.43 9.43 9.43 15 9.49 9.49 9.21 9.21 9.21 9.21 9.21 9.21 16 9.50 9.50 9.21 9.21 9.21 9.21 9.21 9.21 17 10.25 10.25 9.91 9.91 9.91 9.91 9.91 9.91 18 9.52 9.52 9.20 9.20 9.20 9.20 9.20 9.20 19 9.76 9.76 9.76 9.76 9.76 9.76 9.42 9.42 9.42 9.42 9.42 9.42 20 9.54 9.54 9.20 9.20 9.20 9.20 9.20 9.20 21 9.80 9.80 9.43 9.43 9.43 9.43 9.43 9.43 22 9.61 9.61 9.25 9.25 9.25 9.25 9.25 9.25 23 10.06 10.06 9.74 9.74 9.74 9.74 9.74 9.74 24 10.34 10.34 10.00 10.00 10.00 10.00 10.00 10.00 25 10.09 10.09 9.74 9.74 9.74 9.74 9.74 9.74 26 10.38 10.38 10.00 10.00 10.00 10.00 10.00 10.00 27 10.13 10.13 9.75 9.75 9.75 9.75 9.75 9.75 28 10.18 10.18 9.77 9.77 9.77 9.77 9.77 9.77 29 11.34 11.34 10.89 10.89 10.89 10.89 10.89 10.89 30 10.44 10.44 10.01 10.01 10.01 10.01 10.01 10.01 31 10.75 10.75 10.29 10.29 10.29 10.29 10.29 10.29 32 10.49 10.49 10.01 10.01 10.01 10.01 10.01 10.01 33 10.81 10.81 10.29 10.29 10.29 10.29 10.29 10.29 34 10.78 10.78 10.27 10.27 10.27 10.27 10.27 10.27 35 11.30 11.30 10.24 10.24 10.24 10.24 10.24 10.24 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 11.65 11.65 10.54 10.54 10.54 10.54 10.54 10.54 37 25.09 25.09 10.24 10.24 10.24 10.24 10.24 10.24 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%% ________________________________________________________________________________

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) ------------- -------------- ------------- -------------- ------------- -------------- ------------- -------------- Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 - - - - - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 9.97 9.81 9.81 9.81 9.81 9.81 9.81 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 9.28 9.13 9.13 9.13 9.13 9.13 9.13 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 9.55 9.38 9.38 9.38 9.38 9.38 9.38 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 9.34 9.17 9.17 9.17 9.17 9.17 9.17 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 9.57 9.39 9.39 9.39 9.39 9.39 9.39 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 9.35 9.17 9.17 9.17 9.17 9.17 9.17 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9.35 9.17 9.17 9.17 9.17 9.17 9.17 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9.58 9.39 9.39 9.39 9.39 9.39 9.39 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 9.36 9.17 9.17 9.17 9.17 9.17 9.17 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 9.59 9.39 9.39 9.39 9.39 9.39 9.39 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 9.37 9.17 9.17 9.17 9.17 9.17 9.17 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 9.38 9.17 9.17 9.17 9.17 9.17 9.17 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 10.12 9.89 9.89 9.89 9.89 9.89 9.89 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 9.39 9.17 9.17 9.17 9.17 9.17 9.17 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 9.62 9.39 9.39 9.39 9.39 9.39 9.39 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 9.40 9.17 9.17 9.17 9.17 9.17 9.17 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 9.63 9.39 9.39 9.39 9.39 9.39 9.39 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 9.41 9.17 9.17 9.17 9.17 9.17 9.17 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 9.42 9.17 9.17 9.17 9.17 9.17 9.17 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 9.68 9.41 9.41 9.41 9.41 9.41 9.41 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 9.47 9.20 9.20 9.20 9.20 9.20 9.20 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 10.48 10.21 10.21 10.21 10.21 10.21 10.21 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 10.23 9.95 9.95 9.95 9.95 9.95 9.95 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 10.23 9.95 9.95 9.95 9.95 9.95 9.95 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 11.11 10.79 10.79 10.79 10.79 10.79 10.79 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 10.27 9.97 9.97 9.97 9.97 9.97 9.97 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 10.56 10.24 10.24 10.24 10.24 10.24 10.24 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 10.46 10.14 10.14 10.14 10.14 10.14 10.14 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 10.77 10.42 10.42 10.42 10.42 10.42 10.42 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 10.49 10.14 10.14 10.14 10.14 10.14 10.14 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 10.53 10.16 10.16 10.16 10.16 10.16 10.16 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 10.87 10.48 10.48 10.48 10.48 10.48 10.48 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 10.75 10.35 10.35 10.35 10.35 10.35 10.35 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 10.96 10.53 10.53 10.53 10.53 10.53 10.53 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 10.66 10.22 10.22 10.22 10.22 10.22 10.22 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%10.67 10.22 10.22 10.22 10.22 10.22 10.22 37 23.30 11.24 11.24 11.24 11.24 11.24 11.24

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates -------------------------------------------------------------------------------- SCHEDULE OF AVAILABLE FUNDS AND SUPPLEMENTAL INTEREST RATE CAP RATES (Cash CapCASH CAP) (1)(2) Period PERIOD A-2 Cap CAP (%) M-1 Cap CAP (%) M-2 Cap CAP (%) M-3 Cap CAP (%) B-1 Cap CAP (%) B-2 Cap CAP (%) B-3 Cap CAP (%) Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ACTUAL/360 ACTUAL/360 ACTUAL/360 ACTUAL/360 ACTUAL/360 ACTUAL/360 ACTUAL/360 74 13.49 11.94 11.94 11.94 11.94 11.94 11.94 75 13.06 11.55 11.55 11.55 11.55 11.55 11.55 76 13.06 11.55 11.55 11.55 11.55 11.55 11.55 77 13.49 11.93 11.93 11.93 11.93 11.93 11.93 78 13.06 11.55 11.55 11.55 11.55 11.55 11.55 79 13.49 11.93 11.93 11.93 11.93 11.93 11.93 80 13.06 11.55 11.55 11.55 11.55 11.55 11.55 81 13.06 11.54 11.54 11.54 11.54 11.54 11.54 82 14.45 12.78 12.78 12.78 12.78 12.78 12.78 83 11.69 11.54 11.54 11.54 11.54 11.54 11.54 84 11.89 11.92 11.92 11.92 11.92 11.92 11.92 85 11.52 11.54 11.54 11.54 11.54 11.54 11.54 86 11.92 11.92 11.92 11.92 11.92 11.92 11.92 87 11.55 11.54 11.54 11.54 11.54 11.54 11.54 88 11.57 11.54 11.54 11.54 11.54 11.54 11.54 89 11.97 11.92 11.92 11.92 11.92 11.92 11.92 90 11.61 11.53 11.53 11.53 11.53 11.53 11.53 91 12.01 11.92 11.92 11.92 11.92 11.92 11.92 92 11.64 11.53 11.53 11.53 11.53 11.53 11.53 93 11.66 11.53 11.53 11.53 11.53 11.53 11.53 94 12.93 12.76 12.76 12.76 12.76 12.76 12.76 95 11.70 11.53 11.53 11.53 11.53 11.53 11.53 96 12.11 11.91 11.91 11.91 11.91 11.91 11.91 97 11.75 11.52 11.52 11.52 11.52 11.52 11.52 98 12.16 11.91 11.91 11.91 11.91 11.91 11.91 99 11.79 11.52 11.52 11.52 11.52 11.52 11.52 100 11.81 11.52 11.52 11.52 11.52 11.52 11.52 101 12.23 11.90 11.90 11.90 11.90 11.90 11.90 102 11.86 11.52 11.52 11.52 11.52 11.52 11.52 103 12.28 11.90 11.90 11.90 11.90 11.90 11.90 104 11.91 11.52 11.52 11.52 11.52 11.52 11.52 105 11.94 11.51 11.51 11.51 11.51 11.51 11.51 106 12.79 12.31 12.31 12.31 12.31 12.31 - 107 12.00 11.51 11.51 11.51 11.51 11.51 - 108 12.42 11.90 11.90 11.90 11.90 11.90 - 109 12.05 11.51 11.51 11.51 11.51 11.51 - 110 12.49 11.89 11.89 11.89 11.89 11.89 - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%% --------------------------------------------------------------------------------

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates -------------------------------------------------------------------------------- SCHEDULE OF AVAILABLE FUNDS AND SUPPLEMENTAL INTEREST RATE CAP RATES (Cash CapCASH CAP) (1)(2) Period PERIOD A-2 Cap CAP (%) M-1 Cap CAP (%) M-2 Cap CAP (%) M-3 Cap CAP (%) B-1 Cap CAP (%) B-2 Cap CAP (%) B-3 Cap CAP (%) Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ACTUAL/360 ACTUAL/360 ACTUAL/360 ACTUAL/360 ACTUAL/360 ACTUAL/360 ACTUAL/360 111 12.12 11.51 11.51 11.51 11.51 11.51 - 112 12.15 11.51 11.51 11.51 11.51 11.51 - 113 12.59 11.89 11.89 11.89 11.89 11.89 - 114 12.21 11.51 11.51 11.51 11.51 11.51 - 115 12.66 11.89 11.89 11.89 11.89 11.89 - 116 12.28 11.50 11.50 11.50 11.50 11.50 - 117 12.32 11.50 11.50 11.50 11.50 11.50 - 118 13.68 12.73 12.73 12.73 12.73 12.73 - 119 12.40 11.50 11.50 11.50 11.50 - - 120 12.85 11.88 11.88 11.88 11.88 - - 121 12.48 11.50 11.50 11.50 11.50 - - 122 12.93 11.88 11.88 11.88 11.88 - - 123 12.56 11.50 11.50 11.50 11.50 - - 124 12.60 11.50 11.50 11.50 11.50 - - 125 13.07 11.88 11.88 11.88 11.88 - - 126 12.69 11.49 11.49 11.49 11.49 - - 127 13.17 11.88 11.88 11.88 11.88 - - 128 12.79 11.49 11.49 11.49 11.49 - - 129 12.84 11.49 11.49 11.49 11.49 - - 130 14.27 12.72 12.72 12.72 - - - 131 12.94 11.49 11.49 11.49 - - - 132 13.43 11.87 11.87 11.87 - - - 133 13.05 11.49 11.49 11.49 - - - 134 13.54 11.87 11.87 11.87 - - - 135 13.17 11.49 11.49 11.49 - - - 136 13.23 11.49 11.49 11.49 - - - 137 13.73 11.87 11.87 11.87 - - - 138 13.35 11.49 11.49 11.49 - - - 139 13.86 11.87 11.87 11.87 - - - 140 13.48 11.48 11.48 11.48 - - - 141 13.55 11.48 11.48 - - - - 142 15.08 12.71 12.71 - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 - 143 13.69 11.48 11.48 - - - - 144 14.22 11.86 11.86 - - - - 145 13.84 11.48 11.48 - - - - 146 14.38 11.86 11.86 - - - - 147 13.99 11.48 11.48 - - - - 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%% --------------------------------------------------------------------------------

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. ------------------------------------------------------------------------------- Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 A-1 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) ------ ---------- ----------- ----------- ----------- ----------- Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 - - - - - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%11.24 10.54 10.54 10.54 10.54 37 19.20 10.27 10.27 10.27 10.27 38 11.52 10.61 10.61 10.60 10.60 39 11.14 10.35 10.35 10.35 10.35 40 11.23 10.43 10.43 10.43 10.43 41 11.71 10.47 10.47 10.47 10.47 42 11.44 10.27 10.27 10.27 10.27 43 11.83 10.58 10.58 10.58 10.58 44 11.49 10.32 10.32 10.32 10.32 45 11.50 10.33 10.33 10.33 10.33 46 12.33 10.98 10.98 10.98 10.98 47 11.55 10.37 10.37 10.37 10.37 48 11.94 10.69 10.69 10.69 10.69 49 11.58 10.40 10.40 10.40 10.40 50 11.98 10.72 10.72 10.72 10.72 51 11.61 10.42 10.42 10.42 10.42 52 11.80 10.60 10.60 10.60 10.60 53 12.56 10.52 10.52 10.52 10.52 54 12.17 10.21 10.21 10.21 10.21 55 12.58 10.53 10.53 10.53 10.53 56 12.18 10.22 10.22 10.22 10.22 57 12.19 10.22 10.22 10.22 10.22 58 13.51 11.27 11.27 11.27 11.27 59 12.21 10.33 10.33 10.33 10.33 60 12.62 10.66 10.66 10.66 10.66 61 12.22 10.35 10.35 10.35 10.35 62 12.63 10.67 10.67 10.67 10.67 63 12.23 10.35 10.35 10.35 10.35 64 12.24 10.36 10.36 10.36 10.36 65 12.66 10.69 10.69 10.69 10.69 66 12.25 10.37 10.37 10.37 10.37 67 12.67 10.70 10.70 10.70 10.70 68 12.27 10.38 10.38 10.38 10.38 69 12.27 10.38 10.38 10.38 10.38 70 13.60 11.44 11.44 11.44 11.44 71 12.29 10.40 10.40 10.40 10.40

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) ------------- -------------- ------------- -------------- ------------- -------------- ------------- -------------- Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 114 11.78 10.78 10.78 10.78 10.78 - - 115 11.81 10.78 10.78 10.78 10.78 - - 116 12.23 11.14 11.14 11.14 11.14 - - 117 11.86 10.78 10.78 10.78 10.78 - - 118 12.29 11.13 11.13 11.13 11.13 - - 119 11.93 10.77 10.77 10.77 10.77 - - 120 11.96 10.77 10.77 10.77 10.77 - - 121 13.27 11.93 11.93 11.93 11.93 - - 122 12.02 10.77 10.77 10.77 10.77 - - 123 12.46 11.13 11.13 11.13 11.13 - - 124 12.09 10.77 10.77 10.77 - - - 125 12.53 11.13 11.13 11.13 - - - 126 12.17 10.77 10.77 10.77 - - - 127 12.20 10.77 10.77 10.77 - - - 128 12.65 11.13 11.13 11.13 - - - 129 12.28 10.77 10.77 10.77 - - - 130 12.74 11.13 11.13 11.13 - - - 131 12.37 10.77 10.77 10.77 - - - 132 12.41 10.77 10.77 - - - - 133 13.79 11.93 11.93 - - - - 134 12.50 10.77 10.77 - - - - 135 12.97 11.13 11.13 - - - - 136 12.60 10.77 10.77 - - - - 137 13.07 11.13 11.13 - - - - 138 12.70 10.77 10.77 - - - - 139 12.75 10.77 10.77 - - - - 140 13.23 11.13 11.13 - - - - 141 12.86 10.77 10.77 - - - - 142 13.35 11.13 11.13 - - - - 143 12.97 10.77 10.77 - - - - 144 13.03 10.77 - - - - - 145 14.00 11.51 - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%- - - 146 13.16 10.77 - - - - - 147 13.66 11.13 - - - - - 148 13.29 10.77 - - - - - 149 13.80 11.13 - - - - - 150 13.43 10.77 - - - - - 151 13.50 10.77 - - - - -

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. -------------------------------------------------------------------------------- Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) --------- ------------ ------------ ----------- ----------- ----------- ----------- ----------- Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 - - - - - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 10.03 9.80 9.80 9.80 9.80 9.80 9.80 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 9.60 9.37 9.37 9.37 9.37 9.37 9.37 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 9.44 9.19 9.19 9.19 9.19 9.19 9.19 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 9.47 9.21 9.21 9.21 9.21 9.21 9.21 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 9.96 9.67 9.67 9.67 9.67 9.67 9.67 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 9.49 9.21 9.21 9.21 9.21 9.21 9.21 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.73 9.44 9.44 9.44 9.44 9.44 9.44 8 9.50 9.21 9.21 9.21 9.21 9.21 9.21 9 9.74 9.43 9.43 9.43 9.43 9.43 9.43 10 9.52 9.21 9.21 9.21 9.21 9.21 9.21 11 9.52 9.21 9.21 9.21 9.21 9.21 9.21 12 9.77 9.43 9.43 9.43 9.43 9.43 9.43 13 9.54 9.21 9.21 9.21 9.21 9.21 9.21 14 9.79 9.43 9.43 9.43 9.43 9.43 9.43 15 9.56 9.21 9.21 9.21 9.21 9.21 9.21 16 9.57 9.21 9.21 9.21 9.21 9.21 9.21 17 10.34 9.93 9.93 9.93 9.93 9.93 9.93 18 9.59 9.21 9.21 9.21 9.21 9.21 9.21 19 9.84 9.43 9.43 9.43 9.43 9.43 9.43 20 9.62 9.21 9.21 9.21 9.21 9.21 9.21 21 9.87 9.43 9.43 9.43 9.43 9.43 9.43 22 9.64 9.21 9.21 9.21 9.21 9.21 9.21 23 10.11 10.15 10.15 10.15 10.15 10.15 10.15 24 10.39 10.40 10.40 10.40 10.40 10.40 10.40 25 10.14 10.15 10.15 10.15 10.15 10.15 10.15 26 10.43 10.40 10.40 10.40 10.40 10.40 10.40 27 10.17 10.14 10.14 10.14 10.14 10.14 10.14 28 10.20 10.15 10.15 10.15 10.15 10.15 10.15 29 11.62 11.49 11.49 11.49 11.49 11.49 11.49 30 10.67 10.57 10.57 10.57 10.57 10.57 10.57 31 11.00 10.86 10.86 10.86 10.86 10.86 10.86 32 10.72 10.57 10.57 10.57 10.57 10.57 10.57 33 11.05 10.86 10.86 10.86 10.86 10.86 10.86 34 10.78 10.57 10.57 10.57 10.57 10.57 10.57 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 10.28 11.03 11.03 11.03 11.03 11.03 11.03 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 10.66 11.35 11.35 11.35 11.35 11.35 11.35 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates -------------------------------------------------------------------------------- SCHEDULE OF AVAILABLE FUNDS AND SUPPLEMENTAL INTEREST RATE CAP RATES (Cash CapCASH CAP) (1)(2) Period PERIOD A-2 Cap CAP (%) M-1 Cap CAP (%) M-2 Cap CAP (%) M-3 Cap CAP (%) B-1 Cap CAP (%) B-2 Cap CAP (%) B-3 Cap CAP (%) Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 - - - - - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ACTUAL/360 ACTUAL/360 ACTUAL/360 ACTUAL/360 ACTUAL/360 ACTUAL/360 ACTUAL/360 37 23.27 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 9.86 9.86 9.86 9.86 9.86 38 12.10 10.18 10.18 10.18 10.18 10.18 10.18 39 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 9.85 9.85 9.85 9.85 9.85 9.85 40 11.63 9.89 9.89 9.89 9.89 9.89 9.89 41 12.83 11.21 11.21 11.21 11.21 11.21 11.21 42 12.41 10.84 10.84 10.84 10.84 10.84 10.84 43 12.82 11.20 11.20 11.20 11.20 11.20 11.20 44 12.40 10.84 10.84 10.84 10.84 10.84 10.84 45 12.40 10.84 10.84 10.84 10.84 10.84 10.84 46 13.77 12.04 12.04 12.04 12.04 12.04 12.04 47 13.00 11.52 11.52 11.52 11.52 11.52 11.52 48 13.43 11.90 11.90 11.90 11.90 11.90 11.90 49 13.00 11.52 11.52 11.52 11.52 11.52 11.52 50 13.43 11.90 11.90 11.90 11.90 11.90 11.90 51 13.00 11.51 11.51 11.51 11.51 11.51 11.51 52 13.03 11.55 11.55 11.55 11.55 11.55 11.55 53 13.48 11.94 11.94 11.94 11.94 11.94 11.94 54 13.04 11.55 11.55 11.55 11.55 11.55 11.55 55 13.48 11.94 11.94 11.94 11.94 11.94 11.94 56 13.04 11.55 11.55 11.55 11.55 11.55 11.55 57 13.04 11.55 11.55 11.55 11.55 11.55 11.55 58 13.96 12.37 12.37 12.37 12.37 12.37 12.37 59 13.07 11.58 11.58 11.58 11.58 11.58 11.58 60 13.50 11.96 11.96 11.96 11.96 11.96 11.96 61 13.07 11.57 11.57 11.57 11.57 11.57 11.57 62 13.50 11.96 11.96 11.96 11.96 11.96 11.96 63 13.07 11.57 11.57 11.57 11.57 11.57 11.57 64 13.07 11.57 11.57 11.57 11.57 11.57 11.57 65 13.50 11.95 11.95 11.95 11.95 11.95 11.95 66 13.06 11.57 11.57 11.57 11.57 11.57 11.57 67 13.50 11.95 11.95 11.95 11.95 11.95 11.95 68 13.06 11.56 11.56 11.56 11.56 11.56 11.56 69 13.06 11.56 11.56 11.56 11.56 11.56 11.56 70 14.46 12.80 12.80 12.80 12.80 12.80 12.80 71 13.06 11.56 11.56 11.56 11.56 11.56 11.56 72 13.50 11.94 11.94 11.94 11.94 11.94 11.94 73 13.06 11.56 11.56 11.56 11.56 11.56 11.56 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%% --------------------------------------------------------------------------------

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. ________________________________________________________________________________ Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) A-3 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) Period Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 Actual/360 ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- 76 - 12.89 10.35 10.35 10.35 10.35 10.35 10.35 77 - 14.27 11.45 11.45 11.45 11.45 11.45 11.45 78 - 12.89 10.34 10.34 10.34 10.34 10.34 10.34 79 - 13.32 10.69 10.69 10.69 10.69 10.69 10.69 80 - 12.89 10.34 10.34 10.34 10.34 10.34 10.34 81 - 13.32 10.69 10.69 10.69 10.69 10.69 10.69 82 - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 12.89 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.34 10.34 10.34 10.34 10.34 83 - 12.89 10.34 10.34 10.34 10.34 10.34 10.34 84 - 13.32 10.68 10.68 10.68 10.68 10.68 10.68 85 - 12.89 10.34 10.34 10.34 10.34 10.34 10.34 86 - 13.32 10.68 10.68 10.68 10.68 10.68 10.68 87 - 12.89 10.33 10.33 10.33 10.33 10.33 10.33 88 - 12.89 10.33 10.33 10.33 10.33 10.33 10.33 89 - 14.27 11.44 11.44 11.44 11.44 11.44 11.44 90 - 12.88 10.33 10.33 10.33 10.33 10.33 10.33 91 - 13.31 10.67 10.67 10.67 10.67 10.67 10.67 92 - 12.88 10.33 10.33 10.33 10.33 10.33 10.33 93 - 13.31 10.67 10.67 10.67 10.67 10.67 10.67 94 - 11.10 10.33 10.33 10.33 10.33 10.33 10.33 95 - 10.83 10.33 10.33 10.33 10.33 10.33 10.33 96 - 11.21 10.67 10.67 10.67 10.67 10.67 10.67 97 - 10.87 10.32 10.32 10.32 10.32 10.32 10.32 98 - 11.25 10.67 10.67 10.67 10.67 10.67 10.67 99 - 10.91 10.32 10.32 10.32 10.32 10.32 10.32 100 - 10.93 10.32 10.32 10.32 10.32 10.32 10.32 101 - 11.70 11.03 11.03 11.03 11.03 11.03 11.03 102 - 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 10.32 10.32 10.32 10.32 10.32 10.32 103 - 11.36 10.66 10.66 10.66 10.66 10.66 10.66 104 - 11.02 10.32 10.32 10.32 10.32 10.32 10.32 105 - 11.41 10.66 10.66 10.66 10.66 10.66 10.66 106 - 11.06 10.31 10.31 10.31 10.31 10.31 10.31 107 - 11.09 10.31 10.31 10.31 10.31 10.31 10.31 108 - 11.48 10.66 10.66 10.66 10.66 10.66 10.66 109 - 11.14 10.31 10.31 10.31 10.31 10.31 10.31 110 - 11.54 10.65 10.65 10.65 10.65 10.65 10.65 111 - 11.19 10.31 10.31 10.31 10.31 10.31 10.31 112 - 11.22 10.31 10.31 10.31 10.31 10.31 10.31 113 - 12.45 11.41 11.41 11.41 11.41 11.41 - 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. -------------------------------------------------------------------------------- Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) --------- ------------ ------------ ----------- ----------- ----------- ----------- ----------- Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 - - - - - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 37 28.29 11.03 11.03 11.03 11.03 11.03 11.03 38 12.99 11.35 11.35 11.35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 11.34 11.34 39 12.50 11.03 11.03 11.03 11.02 11.02 11.02 40 12.43 11.03 11.03 11.03 11.02 11.02 11.02 41 14.72 12.11 12.11 12.11 12.11 12.11 12.11 42 13.29 10.99 10.99 10.99 10.99 10.99 10.99 43 13.73 11.33 11.33 11.33 11.33 11.33 11.33 44 13.28 10.98 10.98 10.98 10.98 10.98 10.98 45 13.73 11.33 11.33 11.33 11.33 11.33 11.33 46 13.29 10.98 10.98 10.98 10.98 10.98 10.98 47 13.92 11.14 11.14 11.14 11.14 11.14 11.14 48 14.39 11.51 11.51 11.51 11.51 11.51 11.51 49 13.92 11.13 11.13 11.13 11.13 11.13 11.13 50 14.39 11.50 11.50 11.50 11.50 11.50 11.50 51 13.92 11.13 11.13 11.13 11.13 11.13 11.13 52 13.92 11.13 11.13 11.13 11.13 11.13 11.13 53 14.92 11.93 11.93 11.93 11.93 11.93 11.93 54 13.95 11.16 11.16 11.16 11.16 11.16 11.16 55 14.42 11.53 11.53 11.53 11.53 11.53 11.53 56 13.95 11.16 11.16 11.16 11.16 11.16 11.16 57 14.41 11.53 11.53 11.53 11.53 11.53 11.53 58 13.95 11.15 11.15 11.15 11.15 11.15 11.15 59 13.97 11.18 11.18 11.18 11.18 11.18 11.18 60 14.44 11.55 11.55 11.55 11.55 11.55 11.55 61 13.97 11.17 11.17 11.17 11.17 11.17 11.17 62 14.43 11.54 11.54 11.54 11.54 11.54 11.54 63 13.97 11.17 11.17 11.17 11.17 11.17 11.17 64 13.97 11.17 11.17 11.17 11.17 11.17 11.17 65 15.46 12.36 12.36 12.36 12.36 12.36 12.36 66 13.96 11.17 11.17 11.17 11.17 11.17 11.17 67 14.43 11.54 11.54 11.54 11.54 11.54 11.54 68 13.96 11.16 11.16 11.16 11.16 11.16 11.16 69 14.43 11.53 11.53 11.53 11.53 11.53 11.53 70 13.96 11.16 11.16 11.16 11.16 11.16 11.16 71 13.96 11.16 11.16 11.16 11.16 11.16 11.16 72 14.43 11.53 11.53 11.53 11.53 11.53 11.53 73 13.96 11.16 11.16 11.16 11.16 11.16 11.16 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. ________________________________________________________________________________ Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) A-3 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) Period Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 Actual/360 ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- 38 11.99 11.99 10.54 10.54 10.54 10.53 10.53 10.53 39 11.55 11.55 10.25 10.25 10.25 10.24 10.24 10.24 40 11.70 11.70 10.48 10.48 10.48 10.48 10.48 10.48 41 13.39 13.39 11.27 11.27 11.27 11.27 11.27 11.27 42 12.10 12.10 10.24 10.24 10.24 10.24 10.24 10.24 43 12.50 12.50 10.56 10.56 10.56 10.56 10.56 10.56 44 12.10 12.10 10.24 10.24 10.24 10.24 10.24 10.24 45 12.51 12.51 10.56 10.56 10.56 10.56 10.56 10.56 46 - 12.31 10.47 10.47 10.47 10.47 10.47 10.47 47 - 12.43 10.26 10.26 10.26 10.26 10.26 10.26 48 - 12.84 10.59 10.59 10.59 10.59 10.59 10.59 49 - 12.43 10.26 10.26 10.26 10.26 10.26 10.26 50 - 12.84 10.59 10.59 10.59 10.59 10.59 10.59 51 - 12.43 10.26 10.26 10.26 10.26 10.26 10.26 52 - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 12.62 10.47 10.47 10.47 10.47 10.47 10.47 53 - 13.59 10.89 10.89 10.89 10.89 10.89 10.89 54 - 12.71 10.19 10.19 10.19 10.19 10.19 10.19 55 - 13.13 10.53 10.53 10.53 10.53 10.53 10.53 56 - 12.71 10.18 10.18 10.18 10.18 10.18 10.18 57 - 13.13 10.52 10.52 10.52 10.52 10.52 10.52 58 - 12.83 10.32 10.32 10.32 10.32 10.32 10.32 59 - 12.89 10.36 10.36 10.36 10.36 10.36 10.36 60 - 13.32 10.71 10.71 10.71 10.71 10.71 10.71 61 - 12.89 10.36 10.36 10.36 10.36 10.36 10.36 62 - 13.32 10.71 10.71 10.71 10.71 10.71 10.71 63 - 12.89 10.36 10.36 10.36 10.36 10.36 10.36 64 - 12.89 10.36 10.36 10.36 10.36 10.36 10.36 65 - 14.27 11.47 11.47 11.47 11.47 11.47 11.47 66 - 12.89 10.36 10.36 10.36 10.36 10.36 10.36 67 - 13.32 10.70 10.70 10.70 10.70 10.70 10.70 68 - 12.89 10.35 10.35 10.35 10.35 10.35 10.35 69 - 13.32 10.70 10.70 10.70 10.70 10.70 10.70 70 - 12.89 10.35 10.35 10.35 10.35 10.35 10.35 71 - 12.89 10.35 10.35 10.35 10.35 10.35 10.35 72 - 13.32 10.70 10.70 10.70 10.70 10.70 10.70 73 - 12.89 10.35 10.35 10.35 10.35 10.35 10.35 74 - 13.32 10.69 10.69 10.69 10.69 10.69 10.69 75 - 12.89 10.35 10.35 10.35 10.35 10.35 10.35 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%% ________________________________________________________________________________

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. ------------------------------------------------------------------------------- Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 A-1 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) ------ ---------- ----------- ----------- ----------- ----------- Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 - - - - - - - 1 12.08 11.81 11.81 11.81 11.81 2 9.34 9.15 9.15 9.15 9.15 3 9.16 8.97 8.97 8.97 8.97 4 9.20 9.00 9.00 9.00 9.00 5 9.45 9.25 9.25 9.25 9.25 6 9.30 9.09 9.09 9.09 9.09 7 9.53 9.31 9.31 9.31 9.31 8 9.32 9.10 9.10 9.10 9.10 9 9.35 9.12 9.12 9.12 9.12 10 10.06 9.80 9.80 9.80 9.80 11 9.38 9.14 9.14 9.14 9.14 12 9.66 9.41 9.41 9.41 9.41 13 9.46 9.21 9.21 9.21 9.21 14 9.70 9.43 9.43 9.43 9.43 15 9.50 9.23 9.23 9.23 9.23 16 9.60 9.32 9.32 9.32 9.32 17 9.38 9.07 9.07 9.07 9.07 18 9.43 9.11 9.11 9.11 9.11 19 9.69 9.35 9.35 9.35 9.35 20 9.55 9.21 9.21 9.21 9.21 21 9.67 9.31 9.31 9.31 9.31 22 10.56 10.15 10.15 10.15 10.15 23 9.91 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 9.52 9.52 9.52 24 10.35 9.93 8.19 8.19 8.19 8.19 8.19 8.19 9.93 9.93 9.93 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 10.11 9.68 9.68 9.68 9.68 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 10.43 9.98 9.98 9.98 9.98 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 10.23 9.78 9.78 9.78 9.78 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 10.37 9.89 9.89 9.89 9.89 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 10.58 10.06 10.06 10.06 10.06 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 10.50 9.97 9.97 9.97 9.97 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 10.83 10.27 10.27 10.27 10.27 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 10.62 10.05 10.05 10.05 10.05 33 11.65 10.10 10.10 10.68 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 11.72 11.04 11.04 11.04 11.04 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%10.75 10.11 10.11 10.11 10.11

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 A Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 B Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) Period Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 - - - - - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 ------ ---------- ----------- ----------- ---------- 35 10.61 10.25 10.25 10.25 36 10.40 10.05 10.05 10.05 37 16.12 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%38 10.89 11.00 10.98 10.98 39 9.82 10.13 10.13 10.13 40 10.18 10.42 10.42 10.42 41 9.99 10.19 10.19 10.19 42 10.37 10.50 10.50 10.50 43 10.05 10.24 10.24 10.24 44 10.07 10.26 10.26 10.26 45 10.46 10.59 10.59 10.59 46 10.26 10.19 10.19 10.19 47 10.61 10.47 10.47 10.47 48 10.31 10.24 10.24 10.24 49 10.40 10.32 10.32 10.32 50 11.13 10.92 10.92 10.92 51 10.73 10.13 10.13 10.13 52 11.12 10.46 10.46 10.46 53 10.79 10.19 10.19 10.19 54 11.26 10.59 10.59 10.59 55 10.94 10.33 10.33 10.33 56 11.15 10.18 10.18 10.18 57 11.56 10.53 10.53 10.53 58 11.20 10.22 10.22 10.22 59 11.58 10.54 10.54 10.54 60 11.21 10.23 10.23 10.23 61 11.22 10.24 10.24 10.24 62 12.43 11.25 11.25 11.25 63 11.27 10.23 10.23 10.23 64 11.65 10.55 10.55 10.55 65 11.28 10.24 10.24 10.24 66 11.66 10.56 10.56 10.56 67 11.29 10.25 10.25 10.25 68 11.29 10.25 10.25 10.25 69 11.67 10.52 10.52 10.52

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. ________________________________________________________________________________ Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) A-3 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) Period Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 Actual/360 ------ ---------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- 114 - 11.28 10.31 10.31 10.31 10.31 10.31 - 115 - 11.69 10.65 10.65 10.65 10.65 10.65 - 116 - 11.34 10.30 10.30 10.30 10.30 10.30 - 117 - 11.75 10.65 10.65 10.65 10.65 10.65 - 118 - 11.41 10.30 10.30 10.30 10.30 10.30 - 119 - 11.44 10.30 10.30 10.30 10.30 10.30 - 120 - 11.86 10.64 10.64 10.64 10.64 10.64 - 121 - 11.51 10.30 10.30 10.30 10.30 10.30 - 122 - 11.93 10.64 10.64 10.64 10.64 10.64 - 123 - 11.58 10.30 10.30 10.30 10.30 10.30 - 124 - 11.62 10.30 10.30 10.30 10.30 10.30 - 125 - 12.91 11.40 11.40 11.40 11.40 11.40 - 126 - 11.70 10.30 10.30 10.30 10.30 10.30 - 127 - 12.14 10.64 10.64 10.64 10.64 - - 128 - 11.79 10.30 10.30 10.30 10.30 - - 129 - 12.22 10.64 10.64 10.64 10.64 - - 130 - 11.88 10.29 10.29 10.29 10.29 - - 131 - 11.92 10.29 10.29 10.29 10.29 - - 132 - 12.37 10.64 10.64 10.64 10.64 - - 133 - 12.02 10.29 10.29 10.29 10.29 - - 134 - 12.47 10.64 10.64 10.64 10.64 - - 135 - 12.12 10.29 10.29 10.29 10.29 - - 136 - 12.17 10.29 10.29 10.29 10.29 - - 137 - 13.54 11.39 11.39 11.39 11.39 - - 138 - 12.28 10.29 10.29 10.29 - - - 139 - 12.75 10.63 10.63 10.63 - - - 140 - 12.40 10.29 10.29 10.29 - - - 141 - 12.87 10.63 10.63 10.63 - - - 142 - 12.52 10.29 10.29 10.29 - - - 143 - 12.58 10.29 10.29 10.29 - - - 144 - 13.07 10.63 10.63 10.63 - - - 145 - 12.71 10.29 10.29 10.29 - - - 146 - 13.21 10.63 10.63 - - - - 147 - 12.85 10.29 10.29 - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 - 148 - 12.92 10.29 10.29 - - - - 149 - 13.89 11.00 11.00 - - - - 150 - 13.07 10.29 10.29 - - - - 151 - 13.59 10.63 10.63 - - - - 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. -------------------------------------------------------------------------------- Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) --------- ------------ ------------ ----------- ----------- ----------- ----------- ----------- Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 - - - - - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 74 14.42 11.53 11.53 11.53 11.53 11.53 11.53 75 13.96 11.15 11.15 11.15 11.15 11.15 11.15 76 13.96 11.15 11.15 11.15 11.15 11.15 11.15 77 15.45 12.35 12.35 12.35 12.35 12.35 12.35 78 13.96 11.15 11.15 11.15 11.15 11.15 11.15 79 14.42 11.52 11.52 11.52 11.52 11.52 11.52 80 13.96 11.15 11.15 11.15 11.15 11.15 11.15 81 14.42 11.52 11.52 11.52 11.52 11.52 11.52 82 13.96 11.14 11.14 11.14 11.14 11.14 11.14 83 13.95 11.14 11.14 11.14 11.14 11.14 11.14 84 14.42 11.51 11.51 11.51 11.51 11.51 11.51 85 13.95 11.14 11.14 11.14 11.14 11.14 11.14 86 14.42 11.51 11.51 11.51 11.51 11.51 11.51 87 13.95 11.14 11.14 11.14 11.14 11.14 11.14 88 13.95 11.14 11.14 11.14 11.14 11.14 11.14 89 15.45 12.33 12.33 12.33 12.33 12.33 12.33 90 13.95 11.14 11.14 11.14 11.14 11.14 11.14 91 14.42 11.51 11.51 11.51 11.51 11.51 11.51 92 13.95 11.13 11.13 11.13 11.13 11.13 11.13 93 14.42 11.50 11.50 11.50 11.50 11.50 11.50 94 13.95 11.13 11.13 11.13 11.13 11.13 11.13 95 13.95 11.13 11.13 11.13 11.13 11.13 11.13 96 14.42 11.50 11.50 11.50 11.50 11.50 11.50 97 11.99 11.13 11.13 11.13 11.13 11.13 11.13 98 12.14 11.50 11.50 11.50 11.50 11.50 11.50 99 11.77 11.13 11.13 11.13 11.13 11.13 11.13 100 11.79 11.13 11.13 11.13 11.13 11.13 11.13 101 12.63 11.89 11.89 11.89 11.89 11.89 11.89 102 11.84 11.12 11.12 11.12 11.12 11.12 11.12 103 12.25 11.49 11.49 11.49 11.49 11.49 11.49 104 11.88 11.12 11.12 11.12 11.12 11.12 11.12 105 12.31 11.49 11.49 11.49 11.49 11.49 11.49 106 11.93 11.12 11.12 11.12 11.12 11.12 11.12 107 11.96 11.12 11.12 11.12 11.12 11.12 11.12 108 12.39 11.49 11.49 11.49 11.49 11.49 11.49 109 12.02 11.12 11.12 11.12 11.12 11.12 11.12 110 12.45 11.49 11.49 11.49 11.49 11.49 11.49 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates SCHEDULE OF AVAILABLE FUNDS AND SUPPLEMENTAL INTEREST RATE CAP RATES (Cash CapCASH CAP) (1)(2) Period PERIOD A-1 CAP (%) A-2 Cap CAP (%) M-1 Cap CAP (%) M-2 Cap (%) M-3 Cap CAP (%) B-1 Cap CAP (%) B-2 Cap CAP (%) B-3 Cap (%) Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ ------------- --------------- --------------- --------------- --------------- --------------- --------------- ACTUAL/360 ACTUAL/360 ACTUAL/360 ACTUAL/360 ACTUAL/360 ACTUAL/360 0 - - - - - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 10.24 10.24 10.02 10.02 10.02 10.02 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 8.26 8.26 8.08 8.08 8.08 8.08 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 8.27 8.27 8.09 8.09 8.09 8.09 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 8.57 8.57 8.38 8.38 8.38 8.38 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 8.38 8.38 8.18 8.18 8.18 8.18 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 8.66 8.66 8.46 8.46 8.46 8.46 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.39 8.39 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 ------------- 8 8.39 8.39 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 9 8.98 8.98 8.75 8.75 8.75 8.75 10 8.46 8.46 8.24 8.24 8.24 8.24 11 8.83 8.83 8.60 8.60 8.60 8.60 8.60 8.60 12 8.56 8.56 8.32 8.32 8.32 8.32 13 8.87 8.87 8.62 8.62 8.62 8.62 14 8.59 8.59 8.34 8.34 8.34 8.34 15 8.61 8.61 8.35 8.35 8.35 8.35 16 9.37 9.37 9.08 9.08 9.08 9.08 17 9.15 9.15 8.86 8.86 8.86 8.86 18 9.52 9.52 9.20 9.20 9.20 9.20 19 9.23 9.23 8.92 8.92 8.92 8.92 20 9.38 9.38 9.05 9.05 9.05 9.05 21 10.47 10.47 10.09 10.09 10.09 10.09 22 9.75 9.75 9.39 9.39 9.39 9.39 23 10.17 10.17 9.78 9.78 9.78 9.78 24 9.88 9.88 9.49 9.49 9.49 9.49 25 10.24 10.24 9.82 9.82 9.82 9.82 26 10.02 10.02 9.59 9.59 9.59 9.59 27 10.07 10.07 9.63 9.63 9.63 9.63 28 10.72 10.72 10.24 10.24 10.24 10.24 29 10.47 10.47 9.98 9.98 9.98 9.98 30 10.93 10.93 10.41 10.41 10.41 10.41 31 10.61 10.61 10.08 10.08 10.08 10.08 32 10.73 10.73 10.18 10.18 10.18 10.18 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 12.14 12.14 11.49 11.49 11.49 11.49 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%11.28 11.28 10.66 10.66 10.66 10.66

SECURITIES AND FUTURES AUTHORITY. Notwithstanding anything to the contrary contained in a definitive Private Placement Memorandum or any transaction document, all persons may disclose to any and all persons, without limitation of any kind, the federal income tax treatment and tax structure of the securities described herein, any fact relevant to understanding the federal tax treatment or tax structure of the securities described herein, and all materials of any kind (including opinions or other tax analyses) relating to such federal tax treatment or tax structure. Schedule of Available Funds and Supplemental Interest Rate Cap Rates (Cash Cap) (1)(2) Period A-2 Cap (%) M-1 Cap (%) M-2 Cap (%) M-3 Cap (%) B-1 Cap (%) B-2 Cap (%) B-3 Cap (%) Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 Actual/360 ------------------------------------------------------------------------------------------------------------------------------------ 0 - - - - - - - 1 9.52 7.89 7.89 7.89 7.89 7.89 7.89 2 8.73 7.12 7.12 7.12 7.12 7.12 7.12 3 8.74 7.12 7.12 7.12 7.12 7.12 7.12 4 8.99 7.36 7.36 7.36 7.36 7.36 7.36 5 8.75 7.12 7.12 7.12 7.12 7.12 7.12 6 9.00 7.36 7.36 7.36 7.36 7.36 7.36 7 8.76 7.12 7.12 7.12 7.12 7.12 7.12 8 8.76 7.12 7.12 7.12 7.12 7.12 7.12 9 9.28 7.61 7.61 7.61 7.61 7.61 7.61 10 8.77 7.12 7.12 7.12 7.12 7.12 7.12 11 9.03 7.35 7.35 7.35 7.35 7.35 7.35 12 8.79 7.12 7.12 7.12 7.12 7.12 7.12 13 9.05 7.35 7.35 7.35 7.35 7.35 7.35 14 8.81 7.12 7.12 7.12 7.12 7.12 7.12 15 8.82 7.12 7.12 7.12 7.12 7.12 7.12 16 9.07 7.35 7.35 7.35 7.35 7.35 7.35 17 8.84 7.12 7.12 7.12 7.12 7.12 7.12 18 9.10 7.35 7.35 7.35 7.35 7.35 7.35 19 8.86 7.12 7.12 7.12 7.12 7.12 7.12 20 8.92 7.15 7.15 7.15 7.15 7.15 7.15 21 10.76 9.03 9.03 9.03 9.03 9.03 9.03 22 9.90 8.19 8.19 8.19 8.19 8.19 8.19 23 10.20 8.47 8.47 8.47 8.47 8.47 8.47 24 9.93 8.19 8.19 8.19 8.19 8.19 8.19 25 9.86 8.47 8.47 8.47 8.47 8.47 8.47 26 9.61 8.21 8.21 8.21 8.21 8.21 8.21 27 9.95 8.55 8.55 8.55 8.55 8.55 8.55 28 10.30 8.87 8.87 8.87 8.87 8.87 8.87 29 10.02 8.59 8.59 8.59 8.59 8.59 8.59 30 10.34 8.87 8.87 8.87 8.87 8.87 8.87 31 10.07 8.59 8.59 8.59 8.59 8.59 8.59 32 10.12 8.60 8.60 8.60 8.60 8.60 8.60 33 11.65 10.10 10.10 10.10 10.10 10.10 10.10 34 10.97 9.44 9.44 9.44 9.44 9.44 9.44 35 11.34 37 27.11 9.76 9.76 9.76 9.76 9.76 9.76 36 11.04 9.44 9.44 9.44 9.44 9.44 9.44 38 12.11 9.45 9.45 9.45 9.45 9.45 9.45 39 12.42 9.87 9.87 9.87 9.87 9.87 9.87 40 13.03 10.48 10.48 10.48 10.48 10.48 10.48 41 12.55 10.14 10.14 10.14 10.14 10.14 10.14 42 12.94 10.48 10.48 10.48 10.48 10.48 10.48 43 12.52 10.14 10.14 10.14 10.14 10.14 10.14 44 12.53 10.14 10.14 10.14 10.14 10.14 10.14 45 14.04 11.42 11.42 11.42 11.42 11.42 11.42 46 12.93 10.57 10.57 10.57 10.57 10.57 10.57 47 13.37 10.92 10.92 10.92 10.92 10.92 10.92 48 12.93 10.57 10.57 10.57 10.57 10.57 10.57 49 13.36 10.92 10.92 10.92 10.92 10.92 10.92 50 12.93 10.57 10.57 10.57 10.57 10.57 10.57 51 12.98 10.63 10.63 10.63 10.63 10.63 10.63 52 13.65 11.23 11.23 11.23 11.23 11.23 11.23 53 13.22 10.87 10.87 10.87 10.87 10.87 10.87 54 13.66 11.23 11.23 11.23 11.23 11.23 11.23 55 13.21 10.87 10.87 10.87 10.87 10.87 10.87 56 13.21 10.87 10.87 10.87 10.87 10.87 10.87 57 14.14 11.63 11.63 11.63 11.63 11.63 11.63 58 13.36 11.02 11.02 11.02 11.02 11.02 11.02 59 13.80 11.39 11.39 11.39 11.39 11.39 11.39 60 13.36 11.02 11.02 11.02 11.02 11.02 11.02 61 13.80 11.38 11.38 11.38 11.38 11.38 11.38 62 13.36 11.02 11.02 11.02 11.02 11.02 11.02 63 13.36 11.01 11.01 11.01 11.01 11.01 11.01 64 13.80 11.38 11.38 11.38 11.38 11.38 11.38 65 13.36 11.01 11.01 11.01 11.01 11.01 11.01 66 13.80 11.38 11.38 11.38 11.38 11.38 11.38 67 13.36 11.01 11.01 11.01 11.01 11.01 11.01 68 13.36 11.01 11.01 11.01 11.01 11.01 11.01 69 14.79 12.19 12.19 12.19 12.19 12.19 12.19 70 13.36 11.01 11.01 11.01 11.01 11.01 11.01 71 13.80 11.37 11.37 11.37 11.37 11.37 11.37 72 13.36 11.00 11.00 11.00 11.00 11.00 11.00 73 13.80 11.37 11.37 11.37 11.37 11.37 11.37 1 Annualized coupon based on total interest paid to the certificates including Accrued Certificate Interest, unpaid interest amounts and Basis Risk Carry Forward Amount divided by the current certificate balance 2 Run to maturity assuming 100% PPC, no losses and a 1 month and 6 month LIBOR rate of 20%