I am using this http://www.iclarified.com/entry/comments.php?enid=455 guide and I am trying to upgrade to 1.1.2. I have downloaded Oktoprep. As of now I have downloaded the 1.1.2 firmware and have OPTION updated my iphone to it. I get an error afterwards in itunes with a code 1506 or something at the end. Then when I go to use the jailbreak.jar file it says it cannot connect. Can anyone please help me through?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!?!