I bought an Itouch (replacing a dying nano) and couldn't use it because I needed to upgrade to XP. I tried to upgrade to XP and all hell broke loose. I had to do a clean install wiping out my hard drive. Everything got setup including my Itouch but now my PURCHASED Itunes, saved on to a CD, will only restored to my computer library and NOT my Itouch. A message keeps saying I don't have permission to use certain titles (47 or 56) on my computer at all. I'm confused. I purchased those songs just as I would have a 45 or a cd...why can't I put them on my updated computer and my new Ipod? I've told Itunes to authorize my computer and it did but nothing changed. Help!