Thanks for the reply!
What exactly happens when you try to sync?
Up til now it didnt sync at all, right now what happens is it syncs some but others remain empty
(this is not the case on iTunes)
Does iTunes see the iPod?
Yes
Was the iPod previous synced to another iTunes library/computer?
Same computer, but I had iPod 3 before.
Have you successfully synced from this iTunes library/computer before?
Yes, not playlists however only mp3s
If so have you done anything like update iTunes on the computer since it last successfully synced?
I updated iTunes since the last time, yes
Do the songs play in iTunes?
Does any media now sync to the iPod?
Yes
Do you have the right boxes checked to sync?
Those being?