How do i do this...?

[AzErEuS]

Hey, i have created a comunity for a simulator car racing game.
I had no problem with the Mysql and PHP instalation of the forum, the forum its working 100%.

Here is my question, i want to create a type of registration ID, like the one that you recive when you pass the driving test, that allows you to drive on the streets.
So here is my question, each person that register with the forum will have the posibility of apply for this ID, but he will have to fill up some field.
Name:
Age:
Licens Name: ( the one inside the game )
Location:

So good so far. Now this is more like a point me in the right direccion post.
I have and idea of php and mysql so this is what i want to do.
Using the existing vbulletin sql database what i want to do its to create a new table inside the USER structure. and in the table add the fields that i mention before.

So in a .php page i will create this webpage where the logged in player will be able to create its on id and then ti will be displayed in the correct tournament.
The functionality will be like this
( assuming hes looged in )
Create id
Apply to tournament.

I have installed vbulletin in my pc for testing porpuses.
Here is my question:
** can i create the new table and field and then uplodead the database to the web server?
** how can i do this?
I actually need to be pointed in the rigth direccion due i dont want to loose all the already registered players on the forum. i just want to add that table.

Hope i explained my self.

Thanks for reading.