just to pick your brain again (so-to-speak) if that doesnt help what do you think the problem could be? and is there any way to really remove limewire and re-install and NOT have the old Limewire(library) return?

By the sounds of it your problem doesn't have anything to do with Limewire...
You stated in your 1st post that the songs play fine, so it's not the files you are downloading...
The ipod and burning cd's are a seperate issue...
I'd suggest posting your problem at the itunes forum...

To uninstall limewire from your computer correctly go to Start > All Programs > Limewire-uninstaller..