If you ordered the plus version, you should have gotten an email from stardock with a download link and the serial. Check to see if you have the email and also for the CursorXPPlus131.exe on your hard drive. But if you do have all those tabs and are able to use them, then you have the plus version.
Go to the link below and enter your email address and you should get an email with the download links and serials for all the products you have purchased from them.
https://www.stardock.com/support.asp