I saw on iTunes that there was an update to 4.3 firmware, and i already had a jailbroken iTouch 4G. i wasn't aware that upgrading would delete the jailbreak so i clicked yes. I checked back when the iPod Touch was finished upgrading and my jailbreak was deleted! I had customized my iPod Touch alot and i don't want to go through the whole process again by re-jailbreaking and etc. Is there any way i can "restore" my iPod so that the jailbreak will be back?