hi guys I was about to gamble on my iPhone by upgrading .. then I thought macrumors! these are my specs : iPhone 4 ... 4.3.3 ... 04.10.01 ... jailbroken by : jailbreakme can I upgrade it simply by iTunes ? or do I need redsn0w ? and if so link me to a guide? sorry for being a n00b .. but plz bare with me "help me Obi-wan kanobi ... you're my only hope"