I've pasted your code below. I had no problem adding some
dummy content in red before the <!-- begin main content --> and viewing it in a browser.
HTML Code:
<html>
<head>
<title>CubicleSales.com</title>
<meta name="Description" content="Welcome to dB Masters Multimedia" />
<link rel="stylesheet" type="text/css" href="includes/style.css" />
<link rel="stylesheet" type="text/css" href="includes/DropDownMenuX.css" />
<script type="text/javascript" language="javascript" src="includes/DropDownMenuX.js"></script>
</head>
<body>
<table cellpadding="0" cellspacing="0" class="template">
<tr>
<td valign="top" rowspan="2">
<img src="images/logo.gif" style="width:129px;height:119px;border-style:none;" alt=""/>
</td>
<td valign="top" width="100%" class="mission">
The premiere Site for Used Cubicles, Used Office Furniture, Modular Workstations, Desks and Refurbished Work Stations for Sale
</td>
</tr>
<tr>
<td valign="bottom" width="100%">
<table cellpadding="0" cellspacing="1" style="border-style:none;" id="menu1" class="ddmx">
<tr>
<td>
<a href="/" class="item1">Home</a>
</td>
<td>
<a href="javascript:void(0);" class="item1">Locations</a>
<div class="section"> <a href="#" class="item2">Los Angeles</a> <a href="#" class="item2">Phoenix</a>
<a href="#" class="item2">San Leandro</a> <a href="#" class="item2">Sacramento</a>
</div>
</td>
<td>
<a href="javascript:void(0);" class="item1">Items For Sale</a>
<div class="section"> <a href="#" class="item2">Cubicles</a> <a href="#" class="item2">Partitions
and Panels</a> <a href="#" class="item2">Desks and Freestanding
Furniture</a> <a href="#" class="item2">Chairs</a> <a href="#" class="item2">Tables</a>
<a href="#" class="item2">Used Desks/Misc</a> <a href="#" class="item2">Keyboards</a>
<a href="#" class="item2">Specials</a> </div>
</td>
<td>
<a href="javascript:void(0);" class="item1">Services and Info</a>
<div class="section"> <a href="#" class="item2">Contact Info</a> <a href="#" class="item2">Design
Center</a> <a href="#" class="item2">Comment/Question</a> <a href="#" class="item2">Leasing
may be a better option than purchasing</a> <a href="#" class="item2">We
Purchase Office Furniture</a> <a href="#" class="item2">Refurbish
Your Existing Workstations</a> <a href="#" class="item2">Installation
Services</a> </div>
</td>
<td>
<a href="javascript:void(0);" class="item1">Articles and Reference</a>
<div class="section"> <a href="#" class="item2">Article- The Changing
Chemistry of Office Cubicles</a> <a href="#" class="item2">Article-
Electrical Options for Office Furniture Cubicles</a> <a href="#" class="item2">Article-
Buying Cubicles</a> <a href="#" class="item2">Cubicle and Furniture
Discussion (Blog)</a> </div>
</td>
<td>
<a href="javascript:void(0);" class="item1">Other Information</a>
<div class="section"> <a href="#" class="item2">Furniture Links</a>
<a href="#" class="item2">Site Map</a> </div>
</td>
</tr>
</table>
</td>
</tr>
<tr><td colspan="2"><img src="images/spacer.gif" width="750" height="5" alt=""></td></tr>
<tr>
<td colspan="2">
<table cellpadding="0" cellspacing="0" class="content_section">
<tr>
<td><img src="images/background_01.gif" width="5" height="5" alt=""></td>
<td class="top"><img src="images/spacer.gif" width="735" height="5" alt=""></td>
<td><img src="images/background_03.gif" width="10" height="5" alt=""></td>
</tr>
<tr>
<td class="left"><img src="images/spacer.gif" width="5" height="15" alt=""></td>
<td class="main" align="center">
<img src="images/728x15_linkunit.gif" style="width:728px;height:15px;border-style:none;" alt=""/>
</td>
<td class="right"><img src="images/spacer.gif" width="10" height="15" alt=""></td>
</tr>
<tr>
<td><img src="images/background_07.gif" width="5" height="10" alt=""></td>
<td class="bottom"><img src="images/spacer.gif" width="735" height="10" alt=""></td>
<td><img src="images/background_09.gif" width="10" height="10" alt=""></td>
</tr>
</table>
</td>
</tr>
<tr><td colspan="2"><img src="images/spacer.gif" width="750" height="5" alt=""></td></tr>
<tr>
<td colspan="2">
<table cellpadding="0" cellspacing="0" class="content_section">
<tr>
<td><img src="images/background_01.gif" width="5" height="5" alt=""></td>
<td class="top" colspan="2"><img src="images/spacer.gif" width="735" height="5" alt=""></td>
<td><img src="images/background_03.gif" width="10" height="5" alt=""></td>
</tr>
<tr>
<td class="left"><img src="images/spacer.gif" width="5" height="85" alt=""></td>
<td class="main" width="100%">
<font color="#FF0000">dummy content in red</font>
<!-- begin main content -->
<!-- begin main content -->
</td>
<td class="column" valign="top" width="10%">
<img src="images/160x600_skyscraper.gif" style="width:160px;height:600px;border-style:none;" alt=""/>
</td>
<td class="right"><img src="images/spacer.gif" width="10" height="85" alt=""></td>
</tr>
<tr>
<td><img src="images/background_07.gif" width="5" height="10" alt=""></td>
<td class="bottom" colspan="2"><img src="images/spacer.gif" width="735" height="10" alt=""></td>
<td><img src="images/background_09.gif" width="10" height="10" alt=""></td>
</tr>
</table>
</td>
</tr>
</table>
<script type="text/javascript" src="includes/DropDownMenuXfooter.js"></script>
</body>
</html>
Try it. We cant attach .html files here so just paste that code into notepad, save it with a .html extension and view it in your browser.