Documents sent back to USCIS on DEC 14th from Kolkata Consulate

[longwait4it]

Me & my wife attended for the H1b & H4 visa interview at Kolkata consulate on Dec 14th 2011. VO didn't ask for any papers except the client letters and H1b petition packet including the RFE papers. They sent it back to USCIS. it's more than three months and I haven't heard anything back from USCIS yet. Now my questions are:

1. Is there any way we can find out where the documents are?

2. Once I hear back from USCIS, generally how long does it take to get the re-approved petition?

If any one has went through the same situation, please let me know.

I appreciate your help.