If anyone knows of a hack for this you will be getting some major brownie points

Is there anyway to add header text on the top of each of your site's forum categories for SEO purposes?

For example, on my site CreditCardForum.com. But I want to be able to put unique text on header of each category. i.e. I would put a couple paragraphs about American Express at the top of this page: http://creditcardforum.com/american-express/

Does anyone have a clue how to do this? It would help tremendously for SEO to have some actual content on these category pages.