This will walk you through everything. You need to click the "get license" from the application to open the paypal site.

http://solidice.com/keyclone/tutorial/index.html
when you run keyclone for the first time, you will be presented with the about box. in the about box you will notice in the lower left 'LICENSE HAS EXPIRED'. this occurrs when keyclone is unable to obtain validation for your CPU (network outage will also yield these results) you will need to obtain a license. click on 'get license' and a web browser will appear taking you to the paypal site.