FogBugz allows you to customize virtually every aspect of the visual appearance of the discussion groups so as to match your corporate website exactly. However, this customization requires some skill with HTML and CSS.
To customize the appearance of discussion groups, log on as administrator and go to the Discuss | Customize screen. At the bottom of the page you'll see a link to customize the appearance.
Customization is done by wrapping the discussion group in HTML which goes before and after the discussion group content, and by providing custom CSS styles to change the formatting and appearance of the discussion group content itself. You can also change the width in pixels of the left sidebar and the main content area.