Hey Badboy,
Good question! I just joined ITunes (got a Shuffle for Christmas) and haven't gotten round to working it out with Vista. Anyway, per Apple...
"Apple recommends that iTunes customers using Windows Vista upgrade to
iTunes 7.2 or later. If you are using an iPod with iTunes on Windows Vista, please review the important information in Knowledge Base document #
305289."
Let us know if this helps.
Lyte