Long story short, I decided to "live on the edge" and try to jailbreak 4.1 with the an unofficial Pwnagetool and it didn't work. So I successfully downgraded from 4.1 to 4.0 and I'd like to get it jailbroken with Pwnagetool. I have a custom 4.0 firmware and everytime I try to restore to the custom firmware I get an error (1604, maybe) and it just throws me out. If you haven't figured out already, I have a 3GS with old bootrom.. I figure I'm just missing something that is right in front of my face. So.. Any and all help will be appreciated.