Modify Register to automatically assign to group

[roberttk]

I have two types of users, General Users and Paid Users. The paid users are going through our shopping cart to pay and then we want to redirect them to a modified register page that signs them up to both the Gereral Users Group and the Paid Users Group.

I am fine with the way the default registration(that comes with vbulletin) works I would just like to take that one and modify it to flag the other user group too.

I do not know how to code PHP, but am hoping it is just a matter of adding a hidden field in the form to check that user group.

Help I need to get this done ASAP to launch the forum.

Thanks,

rtk