If you are using the Cascading Style Sheets (CSS), edit the file default.css located in your htdocs directory. If your not sure how to use CSS, try using a tool like TopStyle. I'm pretty certain that the categories are defined as <SMALL>. You may want to add something like this to your style sheet:

SMALL {
color : Black;
background : White;
font-size : x-small; (you wanted small!)
font-family : verdana, arial, geneva, sans-serif;
}

Hope this helps.

Martin Webster
--
Cebidae's UK Internet Resource
http://www.cebidae.co.uk/