Doug just restored his iPhone to the current 1.1.4 firmware using iTunes. He then tried to use the firmware he had created via WinPwn to jailbreak his iPhone. Well, he found out the hard way that the firmware you create using WinPwn no longer works with version 7.7 of iTunes. Meaning, you cannot restore and jailbreak your iPhone using WinPwn if you have upgraded your iTunes to 7.7…even firmware 1.1.4 and below. Doug had not upgraded to 2.0, it was just a normal jailbreak of 1.1.4…the kind we have done a million times. So it seems that iTunes 7.7 breaks the WinPwn jailbreak. If you have upgraded to iTunes 7.7 and need to down grade so that you can do restore your iPhone if needed…HERE is a link to iTunes 7.5.
Note: Updating to version 7.7 of iTunes will not break your current jailbreak. However, you will not be able to restore using WinPwn if you have version 7.7. The only reason to update to iTunes 7.7 is to get the App Store. If you do not need the App Store because you are not upgrading to the 2.0 firmware…there is no need to update to version 7.7 of iTunes.