vBulletin 3.0.6 Problem

I am using VB 3.0.6, but in your setup it states to use:

include ('ad_network_205.php');

Code (markup):

VB states you have to use this variable for includes to work:

/*
// Example of how to include a seperate file:

ob_start();
include('yourheader.html');
$your_code = ob_get_contents();
ob_end_clean();

// Now place a reference to $your_code where you want the resulting HTML to be displayed.
// This will most likely be the header or footer template.
*/

Code (markup):

So I made it like this....

ob_start(); 
include ('ad_network_205.php');
$ad_network[0] = ob_get_contents();
ob_end_clean(); 

Code (markup):

I set the ad_network_205.txt file to 666, included $ad_network[0] on all the required pages and added the following to the index.php file in the archive folder:

<div class="pagebody">
<?php

include ('ad_network_205.php');
echo $ad_network[0];

Code (markup):

No ads are displayed. Could it be that vb 3.0.6 requires a different way of including files?

 

I already did. From my post above, what am I missing?