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Go to your template > expand forum bit templates > edit forumbit_depth2_forum_lastpost

find

<span class="smalltext">

add this after

<a href="showthread.php?tid={$lastposttid}&amp;action=lastpost"><img src="image url" alt="{$full_lastpost_subject}" border="0" />

Thank you B-P. I will try this when I get a chance tomorrow.