The mov's audio works on the Premiere timeline. And I definately had export audio checked off, cuz that was what I assumed was the problem initially.
I can't seem to find anything on the audio codec through Quicktime...I'm seeing datarate and all that but no audio codec. But even if I did I'm not entirely sure what I would make of it unless someone was able to tell me that certain codecs just weren't compaitible with FLV's and what those codecs were.