Clickbank is a joke! I remember year ago you could put in Google product name and "thank you" and you would find thank you page with direct download link.
EDIT: Someone even made CB product to protect thank you page: Fix My Thank You Page http://fixmythankyoupage.com/ only $97 LOL!
EDIT: Someone even made CB product to protect thank you page: Fix My Thank You Page http://fixmythankyoupage.com/ only $97 LOL!