quicktime player 7>registration fails because webpage no longer exists. What to do?

Yes. Actually I purchased the pro version many years ago. Had to reinstall my system and quicktime player 7 pro. Now when I enter my code I'm sent to a nonexistent website. After wasting more time than I want to admit, I salvaged the situation by recovering the preferences files from an old backup. Apple's responsibility is to create a webpage that deals fairly with clients who use legacy software.