My friend jailbroke my iphone and shipped it from the US before 1.1.2 came out and I received it after 1.1.2 was released.

I can use the features the only problem is Installer.app hangs / is blank with no options when I open it. So i cant use AnySim or any other apps.

I figure I have to restore the firmware and try jailbreakme.com again. ( if this is wrong way / not the best way to go about it let me know) I was wondering how I can restore without updating to 1.1.2

Thanks guys