JOINT FILING AGREEMENT
EXHIBIT 4
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 as of May 25 , 2007.
| Lispenard Street Credit (Master), Ltd. |
| By: ▇▇▇▇▇▇ ▇▇▇▇▇ Capital LLC, its investment manager |
| By: /s/ W. ▇▇▇▇▇▇ ▇▇▇▇▇▇▇ |
| Name: W. ▇▇▇▇▇▇ ▇▇▇▇▇▇▇ |
| Title: Chief Operating Officer |
| Pond View Credit (Master), L.P. |
| By: ▇▇▇▇▇▇ ▇▇▇▇▇ Capital LLC, its investment manager |
| By: /s/ W. ▇▇▇▇▇▇ ▇▇▇▇▇▇▇ |
| Name: W. ▇▇▇▇▇▇ ▇▇▇▇▇▇▇ |
| Title: Chief Operating Officer |
| ▇▇▇▇▇▇ ▇▇▇▇▇ Capital LLC |
| By: ▇▇▇▇▇▇ ▇▇▇▇▇ Management LLC, its management member |
| By: /s/ ▇▇▇▇ ▇▇▇▇▇▇ |
| Name: ▇▇▇▇ ▇▇▇▇▇▇ |
| Title: Authorized Person |
| DiMiao Ahmad Management LLC |
| By: /s/ ▇▇▇▇ ▇▇▇▇▇▇ |
| Name: ▇▇▇▇ ▇▇▇▇▇▇ |
| Title: Authorized Person |
▇▇▇▇ ▇▇▇▇▇▇
/s/ ▇▇▇▇ DiMaio________
▇▇▇▇▇▇ ▇▇▇▇▇
/s/ Nasser Ahmad_______