Hello,
If you are having problems unlocking Cashcow once you have received your registration details, please keep reading...
First of all, sorry for any incovenience caused. I'm currently looking at options to automate the unlock process so that the whole experience can be improved. Hopefully you will be able to just click on a link to register the program once you receive your registration email.
For the time being though, can you just double check that you're entering your email address and license key into the correct fields.
The Registered to: field should contain your email address and the Registration key: field should contain the license key. The click on the Register button. Please see the example screenshot at http://ratfacestudios.com/cashcow/images/unlock_screenshot.png
Of course, if you still have any problems feel free to shoot me an email at bao@ratfacestudios.com
Thanks.
Bao