Assigned to X prj n H1 was filed.Released from X project.RFE status now

I got my Visa status as RFE on sep 29th 2012. I was assigned to X project and H1 was filed that time. Now I am released from X project and assigned to Y project . For RFE status, they are asking the client letter and work order for my X project. What would be the situation in this case. Even my employer is not aware of what to do in this case.Kindly suggest.

X company assignment is over. How to get work order details n client letters for X project now?