custom text shown in one forum only?
 

Hi, I run a forum about fashion, and we have a subforum for members to sell eachother purses, ect, they no longer want. I'm having trouble with a few ppl not bothering to read the rules, and then I have to PM them and ask them to edit their posts. I know you can write something in Forum Description, but if I put the rules on there, it's too much text, and in forum/index, makes the one forum box look all huge. I'd like a way to post the text at the top of my "buy/sell/trade" subforum ONLY, so that people see the text at the top as soon as they open the forum. Is there any way to do this? Thanks :)