Quickpwn gets a new update today as well. You will have to delete the old version and download the new one from the dev team's website.
"Also released today is the ‘150’ beta update to the Windows QuickPwn application, this contains a revised GUI from Poorlad that has tighter integration into the the main updated QuickPwn executable and provides fixes for YouTube and provides BootNeuter support for the unlock of 2G iPhones, remember this is still beta software, use at your own risk." - http://blog.iphone-dev.org/