iPod Touch syncing issues

So I have never had a hitch with my touch connecting it to my Vista desktop PC running iTunes 9.2.1.4 with iOS 4.0.2 on the touch. But I just installed iTunes on my new PC running Windows 7 and got the full library up and running and everything and when I plug my iPod in using the USB cable, it says "syncing iPod" with the little bar under it that moves and it says "syncing applications on iPod" then "iPod sync is complete. Okay to disconnect"
That all sounds fine and dandy but the problem is that it doesn't actually put my music or apps on the iPod, it only says syncing then complete and goes back to the Apple symbol.
Can anybody please help me with this issue? I've tried to find it on google but I can't seem to get the right person to help me.

Thanks.
-Sky