I have a 1.1.1 ISPF unlocked iPhone with Modem Firmware 04.01.13_G (it was unlocked from 1.0.2 by IPSF and then upgraded to 1.1.1). If I will use iTunes to upgrade to 1.1.3 and then use Ziphone to jailbreak, activate and unlock will it work? Also can someone advise whether I should use a specific iTunes version or not and what OS it is better to do it on, XP sp2, Vista or OSX Leopard?
Thanks for all advise

