Open up index.php and find line 193 to 207:
<!-- BEGIN: CONTENT -->
<div id="ja-contentwrap">
<div id="ja-content">
<?php mosMainBody(); ?>
<?php if ( mosCountModules('banner') ) { ?>
<div id="ja-banner">
<?php echo mosLoadModules ( 'banner',-1 ); ?>
</div>
<?php } ?>
</div>
</div>
<!-- END: CONTENT -->
And replace with this:
<!-- BEGIN: CONTENT -->
<div id="ja-contentwrap">
<div id="ja-content">
<?php if ( mosCountModules('banner') ) { ?>
<div id="ja-banner">
<?php echo mosLoadModules ( 'banner',-1 ); ?>
</div>
<?php } ?>
<?php mosMainBody(); ?>
</div>
</div>
<!-- END: CONTENT -->
I have not tested it but this should work. Give it a try and reply again if it did or not?