>Can anyone explain to me how we might go about adding our own php
>code within the search results pages or possibly a link to a
>post about it here in the forums?

You cannot add your PHP code to FatBomb search results,
but you may add search results to your PHP code.

Try
<?php readfile('http://your.domain/cgi-bin/fatbomb/fatbomb.cgi/?keywords=your+keywords'); ?>

Kirill