Ads in Footer not Appearing in IbProArcade

I have my advertisements included in a php file and then included into VBulletin through the plug-ins and global_start. They appear sucessfully on everywhere of the site (including mods) EXCEPT ibproarcade.

Any idea why they are not appearing? Everything else in the footer is appearing.

Here is the code in the template: "footer":

<center><br></br>$ad_network</center>
<br /><br />

HTML Source on a normal VB page:
<center><br></br><a href="http://www.flightfind.co.uk">Flights</a> | <a href="http://www.sendmoneytransfer.com/">WesternUnion</a> | <a href="http://www.digitalpoint.com/tools/ad-network/" rel="nofollow">Web Advertising</a> | <a href="http://www.politechbot.com/2005/11/04/how-the-mpaa/">MPAA</a> | <a href="http://www.moneyexpert.com/Compare-Loans.aspx">Personal Loans</a> <img src="http://ads.digitalpoint.com/t-141939-226--103446-134000.gif" width="1" height="1"></center>

<br /><br />

HTML Source on ibproarcade:

<center><br></br></center>
<br /><br />

[MrZeropage]

open /arcade/functions/functions.php

search for

// add additional needed variables here

below this add

global $ad_network;

This should help

[Fearlessninja]

Worked like charm, thanks =)
Ibproarcade forever!

[GrendelKhan{TSU]

had same issue

thanks! !