For it to work on itouch 4 you need a jailbroken ipod and download any app that allows syncing of cracked apps. if you dont download this it will just say "the application could not be installed".
time to jailbreak my ipod... again. theres a database on cydia that offers game hacks for a bit of money i forget what its called but u get 10$ free anyway im off time to jailbreak ipod