Ok, I'm stumped

I have 2 photopost installations that are integrated with VB3, so this has never come up before. I bought a third license for personel purposes and want it work in standalone mode. I can't find out how to control who gets to register.
I either want to approve who registers (perferred) or just do the registration myself in behalf the 10 - 20 people who will end up registered eventually.
I can't find a way to do either