Here is a tutorial on how to enter the registration code to unlock Funpuz Game Collection and obtain full functionality.
1. Every time you run the 7 day and 20 use trial of Funpuz Game Collection a nag window will appear.

2. Click on the button that says 'Enter Registration Code'.
3. A registration window will appear that allows your name and code to be entered.

4. Enter your name in the top box exactly as it appears on the email or letter sent to you.
5. Enter your registration code in the bottom box exactly as it appears on the email or letter sent to you.
6. Click OK.
7. The program will now run in a fully functional mode with the games you selected to purchase.
Your name will appear in the About box accessible from the Help menu on the top of the Funpuz Game Collection main window. The nag screen will no longer appear and the 7 day limit will be removed.