SO I got me a second hand 3Gs, running on 3.1.0, baseband 05.11.07, the phone has been reseted by the person who sold it to me, but now...when I plug it to my ITunes it says "This iTunes has a previous iphone backup files" from my previous iPhone 2G that was running on the latest 3.1.3. "would you like to restore your back up files from your old iPhone into this new iPhone?" I'd love to use my back up since it is up to date to all my data until up to like 5 days ago. but... would I risk updating the 3Gs to the 3.1.3 firmware? or even change the baseband? or iTunes will innocently just restore all my safari bookmarks, info, notes, contacts, apps without messing around with the outdated 3Gs firmware and baseband? I am so tempted to go ahead and use my backup, but again I don't want to risk iTunes updating my 3GS to 3.1.3 and new baseband, can someone please confirm if this procedure is safe?