[BleverCastard]

Something tells me you didn't script your gamemode. Otherwise you'd know how to do this.

So, when they register(on the website) and a tester+ approves it, set a variable - pApproved - to the account. This will then allow them to log in ingame.

So when they're ingame, you check if pApproved is set to 1. If it is, let them log in. This will only work if you're using the same database.