CSS HTML Validator Support

As is always the way I found the reg code right after I posted this. So not necessary for me but might be for others in the same position.

Hi, I have a registered version of topstyle v3.12. I want to upgrade to v4 and install on a new PC. I no longer have the registration key. (purchased over two years ago) I see on on topstyler 4 purchase page that Existing (TopStyle 3.x) customers are entitled to a $29.95 upgrade . My question is: I ...