It's not clear, from your explaination, if you lost your Serial in the registry, or you lost your purchase receipt, that contains is, or you lost both.
- If you lost only the Serial in the registry, simply select "Register Serial" to insert it again
- If you lost your email receipt, as clearly explained on the manual, and on this post in this section here:
http://www.fsdreamteam.com/forum/index.php?topic=649.0You can retrieve another copy from the Esellerate support site, linked on that post and on the manual.