OK, so I finally jailbroke my iPhone and got all my music etc onto it - then my computer crashes and I have to reinstall iTunes, having done this I realize that it's lost all my stuff! Nightmare! (being a stupid non-techy I hadn't backed iTunes up!) but... I have backed up my iPhone - is there anyway of transferring the stuff on my iPhone 4s to iTunes rather than having to reload 100's of CD's onto it?