Picture as a category?

Is it possible that I could put a picture as a category?

You mean like this? (inside red circling):

Like put a banner where the circle is.

Yes, the words are actually an image. I used this code instead of the category name:

Code:

<img src="IMAGE_ADRESS">

Mariko,

Is it possible make the Images clickable? using your example,
Where the Green Triangle is, allowing users to click that, rather then the text above the image?

I am not sure... But since you can make the description of a forum using html, you could insert a table with no border and place the image in the 1st column and the description in the 2nd one. It should work, though I didn't try it yet.