ok..so i had jailbroken my ipod and had upgraded to firmware 1.1.4 from 1.1.1. but then i had left it that way for ages!. i just wanted to know if there is any method to upgrade to os 2 or even 3 (or probably 4) apart from purchasing the firmware upgrade from apple? If yes, then how can i do the same (pwnage tool..or something like that?)