Modify Paid Subscription Page

[triphp]

This is just a sample scenario that I would like to achive and is not the actual.

The forum will have a paid subscription. Paid subscription will cost $10/month and it's up to the member if he will pay for a certain month or not.

I will add a table_xxx in the vBulletin dbase. This table_xxx will store the cost of subscription. For example, when UserAAA purchase the paid subscription, the $10 will be inserted to a certain field in table_xxx, i.e. costs field. And anyone and everytime there's a payment made for the paid subscription, it will insert into the dbase. So my table_xxx will simply look like this:

table_xxx
id-------------costs-------userid(optional)
1-------------$10---------10
2-------------$10---------15
3-------------$10---------21
......... etc.

I know PHP and MySQL. My question is, what script I am going to edit, payment.php or what? And if possible, what specific part of the script?

Any help is greatly appreciated

Anybody?

* bump

[rhoula]

I looked everywhere for an answer for the same problem. It seems like Vbulletin is dying. It may be time to switch to a better supported Forum software.