Manual SQL queries

[tutt]

Hello,
I have purchased Vbulletin and I am looking for tips or resources for doing things such as:

Executing SQL manually to add users, delete users, modify users (permissions), add forums, sub-forums, delete forums, etc.

In other words, I want to be able to tie Vbulletin in with a project I am coding from the ground up in PHP. Is there a resource that contains SQL queries or at least locations within the database that will help me create my own scripts to add/modify/delete users and forums manually? Any and all help is appreciated. TIA!