A question about sub-forums!

[funinthesun]

On THIS forum, you can see a section labled Sheffield Interest Groups, when you click on it, a list of sub-forums are displayed, however, they are not displayed on the forum home. How do I do this as I only want the sub-forums not to be displayed on the homepage for one section but I also want them to be visible when you click on the link, even if you are just a guest viewing. Is this making sense?!

Also, when you click any of the sub-forums like HERE for example, you can see an image with a description, how can I do this too?

Any help would be greatly appreciated, I have been trying to figure this out for days!!!