this is better
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Add help</title>
<meta http-equiv="cache-control" content="no-cache" />
<meta http-equiv="expires" content="Mon, 22 Jul 2000 11:12:01 GMT" />
<!-- Put IE into quirks mode -->
<title><?php echo HOSTDESCRIPTOR ?>: HelpPage</title>
<link rel="stylesheet" type="text/css" href="CSS/Help.css" />
<link rel="stylesheet" href="/CSS/custom-theme/jquery-ui-1.7.1.custom.css"/>
<link rel="stylesheet" href="/CSS/SiteWide.css"/>
<script type="text/javascript" src="/JavaScripts/DWjQuery.js"></script>
<script type="text/javascript" src="/JavaScripts/CL/ComponentLoader.js"></script>
<script type="text/javascript">
$(document).ready( function()
{
//load the standard headers.
$("#header").LoadComponent("<? echo STANDARD_HEADER;?>");
});
</script>
</head>
<body bgcolor="#eeeeee">
<div style='text-align:center'>
<h2>Amend/Delete Help Record</h2>
<form id="HelpUD" name="HelpUD" action="HelpUpdate.php?UID=<?php echo $ID ?>" method=post enctype="multipart/form-data">
<table style="hidden">
<tr><td>Record Type:</td>
<td><input type='text' readonly id="RecordType" name="RecordType" value="<?php echo $ParentString ?>" >
</td></tr>
<tr><td>Topic Title:</td>
<td><input type="text" id="TopicTitle" name="TopicTitle" value="<?php echo $TopicName ?>" maxlength="25">
</td></tr>
<tr><td>Parent:</td>
<td><input type='text' id="Parent" name="Parent" value="<?php echo $Parent ?>" />
</td></tr>
</table>
Topic Body:
<textarea cols="60" rows="10" id="TopicBody" name="TopicBody" value="<?php echo $Topic ?>"></textarea>
</div>
<p><font color='red'><?php echo $Message ?></font></p>
<input type='button' value="Back" onclick="BackClick()" />
<input type='button' value="Delete" onclick="DeleteHelp()" />
<input type='button' value="Update" onclick="UpdateClick()" />
</form>
</div>
<div id="header">loading...
</div>
</body>
</html>
the best criticism/advice I can offer is to use a code highlighting editor, notepad2 notepad++ or any of the others, that will show you when you have forgotten to close a quote.
the code is not valid xhtml see the new line 2, there are other bugs, validate by pointing the validator at a test run url, so there is a value in the script variables
this tool http://validator.w3.org/ will help you debug