QUOTE(WenRI @ Mar 28 2008, 12:24 PM)

just checked the timeline for those who filed I-751 in March.
seem no one of us get their Bio. app. letters so far.
So USCIS just checked our checks and then???

I'm in the same boat!
We mailed the packet to CSC for my husband on Monday, March 10, and received the NOA 1 year extension on Friday, March 14 (dated March 11), and haven't heard anything since!
I was optimistic seeing people recently filing with CSC and getting their Bio Appt in the mail only a couple weeks after filing, but those couple weeks have come and gone...
So I've been doing the same thing, checking on the timelines for people that filed around the same time as I did and found that either they haven't received there Bio appts, or haven't updated their timelines.
Anyhow, though its a crappy situation to be in, its nice to know there are other in the same situation. AOS wasn't very smooth for us (they never processed EAD or a Biometrics Appt., we got our interview first, made things long and complicated....), so I was hoping this would be a breeze... For all of our sakes (and sanity!) I hope the get a move on it!