I have found out a solution, some of you will know, for banners in PHP-Nuke. In the the admin page, click on Banners - add a client (fake client) and then a list of text-boxes will appear (e.g. Image URL, Send to on click). I found out what to put where easy, you dont need spoon feeding!
(PLEASE INCREASE MY REPUATION IF YOU THOUGHT THIS POST WAS USEFUL)