Ad Banner hack/plugin question

[bradg]

Hey guys-

I'm looking for a way to run rotating banners in specific forums. As of now, I'm running a random banner plugin that works globally and the only way I can specify banners in different forums is to use if/else statements, but this disables the random function. In other words, I can specify a banner, but if I have 5 that I want to rotate, it won't work. I've searched these forums and found quite a few, but I can't really tell which one is right for me.

Here's a look at our forums:
http://forum.averyoutdoors.com

The banners in question are under the navbar. I don't know a lot about this kind of stuff, so any suggestions would be GREATLY appreciated.

Thanks!