I'm guessing you haven't downloaded from the site using your order number and then installed the files. (I think it is a number beginning with R).
You can also go to a page on the site and request to "RECOVER" your order number with the email address you used when ordering.
If all else fails, do an uninstall, registry clean, and try again.
BTW, you can also contact them through support or their forum, and you'll get an answer.