Got an ATF letter Friday. I sent in a printed out version of the current form (the PDF from the Calguns post, I believe), double sided and with all the information printed from my computer.
This was after confirming on the phone with them, because the first form I sent in was out of date. However, it seems they either aren't consistent with their standards or I just lucked out with a super-bureaucratic type, because the letter said my form couldn't be processed.
As I said, this is the current version, printed double sided just like the originals, and with the information computer printed on there so it's very clear to read. They now have all of my correct information twice, and charged my card over a month ago, but now want me to wait for an original and submit that.
Seems like petty foot-dragging to me, but at least they listed a specific person and address to send it to...hopefully that means they'll process me right away instead of taking yet ANOTHER 4-5 weeks. I requested 10 of the forms so I'll have some extras to give out and hopefully shorten the wait for others.