I'm not sure if this can be done with a PHP script or not. Jahkri created an interesting challenge / response system which acts as a form of copy protection. As it stands, the user would have to copy/paste their challenge code (their device ID) and email it to me. They would then receive a different code from me which they would copy/paste into the software to unlock it. Can this be automated in some fashion in order to shorten the user's wait time and take the burden off myself?
Here are the threads which detail the processes involved:
We can discuss the specifics if anyone is interested. I would love to have this and am willing to pay for the work. I would need it quite soon.