So I upgraded my iTunes thinking it'd be ok for jailbreaking but everytime i try to put it in dfu mode now through quickpwn itunes automatically opens and blocks it and gives (error 2001). How would I downgrade so i can go back to jailbreaking/unlocking?

Please dont tell me to search google or this site without a link..i have been searching for the last 30 minutes and have come up with nothing! Please help