most often the problem is what i said above -- the license key download page actually has links to download license keys for different programs -- and people just click on one of the links randomly, and end up with a license key for a different program.
so make sure when you go to the license key page (http://www.donationcoder.com/Keys/index.php
) that you click the link corresponding to the application you will put the license key into.
email me for more help (firstname.lastname@example.org
) if you are still stuck