[Millenium IT]

Ok I quickly made you a code to enable you to do that.

In postbit & postbit_legacy template find:

$template_hook[postbit_end]

Add right above that:

	<if condition="!$GLOBALS['FIRSTPOSTID']">
		<div style="padding:$stylevar[cellpadding]px 0px 0px 0px">
			<table class="tborder" cellpadding="$stylevar[cellpadding]" cellspacing="0" border="0" width="100%" align="center">
				<tr valign="top">	
					<td class="thead">
					Sponsored Ads
					</td>
				</tr>
				<tr valign="top">
					<td class="alt1" align="center">
					<a href="http://www.ps3walls.com" target="_blank" title="PS3 Walls">
					<img src="http://www.iorkara.com/DVC_Ad_for_ps3walls.jpg" border="0" alt="PS3 Walls" />
					</a>
					</td>
				</tr>
			</table>
		</div>
	</if>
</if>

Be sure to replace the banner I used with the one you used