I am running ITunes 8.2 (23) on a 2 ghz Intel Core 2 Duo iMac My IPhone is running OS 2.2 and is an unlocked 3G 16 gig IPhone and everything works great. By the way I am on the Rogers Cell Network (if that matters). I get lost in all the talk and names thrown around about how to update. I unlocked the phone when I got it but really didn't know what I was doing I just followed the directions and it worked. Can I update from 2.2 to 3.0 just by clicking the update that comes up in ITunes?