Is it possible to update to 10.5.2 without affecting my iTunes 7.5? I dont want to update my iTunes to 7.6 because I wont be able to downgrade my iPod Touch to 1.1.2 on that version. So if I upgrade to 10.5.2, will my iTunes 7.5 still work? Or will I be force to update to iTunes 7.6 too? Thanks.