Yeah, that's wierd, I get a crapload of bone errors when I try to load her in. Funny, I just ran through her quest not two hours ago in-game. Here's what I get:
http://smg.photobucket.com/albums/v194/rivergoat/Skyrim/Skyrim%20Odd%20Stuff/?action=view¤t=BonelessIllia.png
I got about 30 messages for different bones before I just hit 'Yes to All'.
I'm assuming that's the problem.