my ipod touch 4g ios 5 will not sync auto with itunes

After reading all the discussions I have decided the fault lies with the new ios 5 and until Apple comes up with a fix I will not resolve it. I also read in these discussions about problems with Audiobooks not showing up as audiobooks in itunes but as music. As an audiobook reader here is what I have discovered: I have an audible.com acct and so far I have noticed no change when I purchase and download a book from that site. The problem comes when I use Overdrive Media which uses DRM and WMA format. These show up in itunes but not in my ipod which means I can only listen to them on my pc or laptop.

Thanks for the tip IIIaass. Did that and several more but my ipod still won't sync automatically with itunes. I can now however download books from OMC after trying all of the suggestions from this discussion group. The end result being that I will stick with Audible as that seems to be the only site unaffected by this upgrade.