Just don't include the part of the code that calls the thread title. Try just replacing the stuff in red with a space or just get rid of the whole row (I didn't look at the html to see if that would effect anything else, so look into it if that is what you decide to try):
Code:
<tr>
<td class="navbar" style="font-size:10pt; padding-top:1px" colspan="3"><if condition="$_SERVER['REQUEST_METHOD'] == 'POST'"><img class="inlineimg" src="$stylevar[imgdir_misc]/navbits_finallink_$stylevar[textdirection].gif" alt="" border="0" /><else /><a href="$navbar_reloadurl"><img class="inlineimg" src="$stylevar[imgdir_misc]/navbits_finallink_$stylevar[textdirection].gif" alt="$vbphrase[reload_this_page]" border="0" /></a></if> <strong>$navbits[lastelement]</strong></td>
</tr>