Baker Boy said:
The music must have got on her current iPhone from a computer at some point so if you plug the new iPhone in to the same computer it should automatically replicate what was on the old one! If all the music has been downloaded from iTunes the same should apply, just plug the new phone in and follow the instructions.
This is bollocks, won't work. What you need to do is take the back off both of them, take the battery out and underneath you'll find the tape that all the songs are recorded on. Just take the tape out of the old one and put it in the new one.
Simples.