Surley after nick telling you exacally what you need to do, you would be able to do it. You cant even follow instructions
Not a drop down menu, he said a radiogroup.
Its a simple if statement.
Then edit the insert query on register.
Simple really.
Surley if your going to own a game you should either know how to code, have an in-house coder, or pay someone to do the work, and not just scav of other peoples good will.
Mabey these sites will help:
Site One and Site Two