I downloaded the ATF form 1 from the ATF website at the beginning of the year for a silencer. It was approved in about four months. The current form looks like the one I used last. It says OMB No. 1140-001 (9/30/2010) at the top and ATF form 1 (5320.1) Revised September 2007 on the bottom.
I have heard that they will accept the older forms for a while, but I think this one is the currant form. You can call them in WV at 1 (304)616-4500. They are the guys that deal with form approval and should know. But remember, every time they pick up the phone to answer someone's question means less time spent rubber stamping forms for approval.