How to add a php script to a Vbulletin?

[mizt]

Ok guys, I'm pretty decent with html but when it comes to php I get lost. I just broke down and bought a license so you will see me here alot. I want to add this script

PHP Code:

<?php
$rssense_client = "pub-MjVAc2XXXXXXXXXXXXXX2UuY29t";
$rssense_source = "pub-ZGIucHXXXXXXXXXXXXW5zZS5jb20=";
$rssense_type = "text";
$rssense_width = 728;
$rssense_height = 90;
$rssense_format = "leaderboard";
$rssense_color_border = "ffffff";
$rssense_color_bg = "ffffff";
$rssense_color_link = "0000ff";
$rssense_color_url = "008000";
$rssense_color_text = "000000";
$rssense_color_title = "e0efea";
$rssense_color_title_bg = "336699";
$rssense_links = "Y";

$rssense_keywords = "";
$rssense_content = "";

include ( dirname(__FILE__) . "/rssense_client.php" );
?>

In a spot like I would an adsense banner, such as below the navbar. Yet when I insert that php code like I would an adsense banner it doesn't work. Nothing appears. I remember with my old cms I had to do like a php include type thing. Maybe I have to do one here? Any help is appericated.

By the way has anyone used this new rss service (rssense)? Seems pretty sweet.