I must just be monumentally dim Lynne, I've tried the code below and the image still wont show, is the conditional correct now do you think?
Code:
<if condition="in_array($thread['forumid'], array(28,29,32,10,39,43,41)) && $threadinfo['postuserid'] == $post['userid']">
<div><img src="$stylevar[imgdir_misc]/moddev.gif" width="100" height="21" border="0" alt="" class="inlineimg" /></div>
</if>