Yes, there's a long thread on this in the USAirways forum.
Seems that bonus points stopped posting after 3/31/2012, which was the end of last year's promotion.
I have yet to file a problem with USAirways, but at some point when I get the time, I will. Both US and AVIS will say to "wait up to 90 days" for points to post... So, we're almost there.