I did email the company this morning about similar issues.
Their stance is, it has to be registered in that 24 hours.
Even if you did register it, then lets say kept the key as you may had to (like me) restore a backup prior to registration within the GUI, then even though it thanks you for registration their server won't accept it.
They also added that they don't do support and we are bound by the rules and regulations of GAOTD.
I only was trying to quiz them about their server side with respect to registration.
Be honest, the software is not much cop and I have removed it.
It changes file system cache settings on my system from 256mb to 4mb or 0mb and also changed my processor cache to 0 from 128mb.
I know you can change it back and then add it to ignore list in software, but to me this is one of the many flaws in the program.
I have a registered version of TuneUp Utilities v2007 which helps keep my system not quite as I want it but an acceptable level.
One of these would be nice for free here:
jv16 PowerTools 2006
Registry cleaner and manager, uninstaller, system fixing tool
RegSupreme Pro 1.4
Registry cleaner and manager
RegSupreme 1.4
Registry cleaner
jv16 Powertools would be magic!