JOINT FILING AGREEMENT

                                                                     EXHIBIT 7
                                                                     ---------


                            JOINT FILING AGREEMENT

         Each of the undersigned hereby acknowledges and agrees, in compliance
with the  provisions  of Rule  13d-1(k)(1)  promulgated  under the  Securities
Exchange  Act of 1934,  as  amended,  that  the  Schedule  13D to  which  this
Agreement is attached as an Exhibit, and any amendments thereto, will be filed
with  the  Securities  and  Exchange  Commission  jointly  on  behalf  of  the
undersigned. This Agreement may be executed in one or more counterparts.

Dated:  September 20, 2007


                                     PARDUS EUROPEAN SPECIAL OPPORTUNITIES
                                     MASTER FUND L.P.

                                       By:  Pardus Capital Management L.P.,
                                       its Investment Manager

                                       By:  Pardus Capital Management LLC,
                                       its general partner


                                       By:  /s/ Xxxxx Xxxxx
                                            -------------------------------
                                            Name:  Xxxxx Xxxxx
                                            Title: Sole Member


                                     PARDUS CAPITAL MANAGEMENT L.P.

                                       By:  Pardus Capital Management LLC,
                                       its general partner


                                       By:  /s/ Xxxxx Xxxxx
                                            -------------------------------
                                            Name:  Xxxxx Xxxxx
                                            Title: Sole Member


                                     PARDUS CAPITAL MANAGEMENT LLC


                                       By:  /s/ Xxxxx Xxxxx
                                            -------------------------------
                                            Name:  Xxxxx Xxxxx
                                            Title: Sole Member



                                       /s/ Xxxxx Xxxxx
                                       ------------------------------------
                                       Xxxxx Xxxxx