I am looking to do this exact same thing – I want the unlock process to be streamlined so that once the visitor has signed up, they get the item they were promised on the page that promises it. There is no need, in this instance, to go to a confirmation or success page on this particular application.
I do not want to direct someone back to this page via an email link or anything like that – if that was even possible given the number of unique pages and unlockable content. They need to stay on the page for this to be effective.
Is this possible? And, if so, how can it be done?