Try this:
HTML Code:
<!-- user info -->
<table cellpadding="0" cellspacing="$stylevar[cellpadding]" border="0" width="100%">
<tr>
<if condition="$bbuserinfo[showavatars]">
<img src="DefaultAvatarURL" alt="" border="0" />
<br />
<if condition="$bbuserinfo['userid'] == $post[userid]">
<a href="profile.php?$session[sessionurl]do=editavatar">Set Avatar</a>
</if>
</if>
<td nowrap="nowrap">
<div id="postmenu_$post[postid]">
<if condition="$show['profile']">
<a class="bigusername" href="member.php?$session[sessionurl]u=$post[userid]">$post[musername]</a>
$post[onlinestatus]
<script type="text/javascript"> vbmenu_register("postmenu_$post[postid]", true); </script>