Top Modules Structure:

<div id="topmodule">
<div class="topmodule-outer">
<-- Start Repeating Here -->
<div class="topmodule-wrap" style="width:100/$total%;float:left;">
<div class="topmodule-inner">
<h3>Module Title</h3>
<div class="mod-body">Module Body</div>
</div>
</div>
<-- End Repeating Here -->
<div class="clear"></div>
</div>
</div>

Bottom Modules Structure:

<div id="botmodule">
<div class="botmodule-outer">
<-- Start Repeating Here -->
<div class="botmodule-wrap"style="width:100/$total%;float:left;">
<div class="botmodule-inner">
<h3>Module Title</h3>
<div class="mod-body">Module Body</div>
</div>
</div>
<-- End Repeating Here -->
<div class="clear"></div>
</div>
</div>

Left Modules Structure:

<-- Start Repeating Here -->
<h3>Module Title</h3>
<div class="mod-body">Module Body</div>
<-- End Repeating Here -->

Right Modules Structure:

<-- Start Repeating Here -->
<h3>Module Title</h3>
<div class="mod-body">Module Body</div>
<-- End Repeating Here -->