Header and footer files where do they go?

[gokeeffe]

I am looking to integrate a new front-end onto my vbulletin installtion. I have nearly completed it now so I am wondering how I can do this.

I have the following file structure:

Forum(folder where VB is stored)
Images2(folder for images for my new interface)
Includes2(this file contains my header and footer html files)
Index.php
Contact.php
Articles.php
Etc

Now here are my includes files where I call my header and footer and also a call to another database I have.

<?php
// Include the header file
include_once ('includes2/header.html');

// Set the page title and include the header
$page_title = 'Welcome to askaboutvalidation.com';

// Include the configuration file
require_once ('includes2/config.inc');

// Connect to the database
require_once ('includes2/mysqlconnect.php');
?>

This is where I want the VB to go

<?php
// Include the footer
include_once('includes2/footer.html');
?>

Basically what I need to find out is where do I place the following code so that my vbulletin forum will have the same header and footer as my new format

Many Thanks in advance

anyone ???????????