Includes in the description area

[wendylady]

I have an html page that I want to include into the description area of the category page. I have tried:

<!--#include file="includes/filename.html" --> and <? include("filename.html") ?>
but neither one works. Does anyone know how to do that?

[wendylady]

I am still trying to figure this out. I have created a php file called portraits.php that is a form to be filled out. I am wanting to include this page into the description area of a category. Can anyone tell me how to do this?