My daughter has my old iPhone 3G. After we passed it over to her we synched the music with her old iPod, which included both burned CDs and some iTunes Store content. When she took it home, her brother synched it with his iTunes account on his machine - no idea why. All the songs we synced here were removed and replaced with his content. No complains from her, so I didn't know this happened. Since then has used that account to buy new iTunes content. Over the last few months this built up, with some Christmas gift cards. Now she has a new album to burn, but if we do that on this machine it will go into her old account. I'd like to set the iPhone back to the original account on the local machine. I'd like to not lose everything she's purchased since then. I really don't know enough about the iTunes structure to know what to do at this point. Any advice?