[Kirk Y]

Okay, use this code instead:

<td class="tcat"><img src="/path/to/your/image_$forum[forumid].gif" /></td>

Then, when you're naming the images you'd like to display, add a suffix to each one with the Forum ID that you'd like it displayed for.

Ex: image.gif for Forum ID 2 becomes - image_2.gif

Edit: If you don't want to display an image for all your forums, you can wrap the above code with the following, which will only display it for specific forums:

<if condition="in_array($forum[forumid], array(X,Y,Z))">
Code Supplied Above
</if>

Replace X,Y,Z with the Forum IDs of the forums you're displaying images next to.