Designate Banners for certain forums

[ScienceOfMuscle]

So I am a novice at VBulletin and jumping head first. I am wanting to designate certain banners for certain forums.

Here is my thinking at the moment.

I should edit the FORUMDISPLAY template and use a condition:

<if condition="$forumid == xxx">
???????????
</if>

Now my brain stops here. I obviously want to place this at the top of a certain forum, but am lost from there.

How would I format it for so many different forums, and how would I make it display at the top of the forum, above where the threads start.

--------------- Added [DATE]1228535885[/DATE] at [TIME]1228535885[/TIME] ---------------

Ah here we go... I want to do the banner just like this website. Each forum sponsor has their own banner at the top of their own forum

http://anabolicminds.com/forum/true-protein/