Add footer banner ddj001-ddj007 joomla templates

I would like to add banner advertisements to the bottom of the template, below the content. What is the best way to do this? Thanks!

Thanx a lot

HI Thankx a million for that little bit of coding I spend like 3 hs trying to do this [very new to coding]. Could you also please tell me how can i add a top banner to free joomla template found here? http://www.youjoomla.com/component/option,com_remository/Itemid,62/func,select/id,14/ Thank you for your help.

Look for this in

Look for this in joomla_root/templates/ddj002/index.php
<div id="body_outer">
   <?php mosMainBody(); ?>
   <div class="clr"></div>
</div>


and put this below it
<?php
if ( mosCountModules ('banner') ) {
?>

<div id="banner_inner">
<img src="<?php echo $mosConfig_live_site;?>/templates/ddj002/images/advertisement.png" alt="advertisement.png, 0 kB" title="advertisement" border="0" height="8" width="468"/><br />
<?php mosLoadModules( 'banner', -1 ); ?>
</div>
<?php
} ?>