Whatever this is is causing the gap. What is it's purpose? I would suggest taking it out of the table and placing it in your "Header Insert:"
<center>
<TABLE border="0" width="92%">
<TR>
<TD align="left" valign="top">
<FONT size="2" face="Tahoma, Verdana, Arial">
<STYLE>
< !--
A.ssmItems:link {color:black;text-decoration:none;}
A.ssmItems:hover {color:black;text-decoration:none;}
A.ssmItems:active {color:black;text-decoration:none;}
A.ssmItems:visited {color:black;text-decoration:none;}
//-->
</STYLE>
<script SRC="http://www.greatocean.com.hk/ubb/menu/ssm.js" language="JavaScript1.2">
//Dynamic-FX slide in menu v6.5 (By maXimus, []maximus@nsimail.com)<br[/] />//Site: <A HREF="http://www.absolutegb.com/maximus
//For" TARGET=_blank>http://www.absolutegb.com/maximus
//For</A> full source, and 100's more DHTML scripts, visit <A HREF="http://www.dynamicdrive.com
</SCRIPT>
<script" TARGET=_blank>http://www.dynamicdrive.com
</SCRIPT>
<script</A> SRC="http://www.greatocean.com.hk/ubb/menu/ssmItems.js" language="JavaScript1.2"></SCRIPT>
</FONT>
</TD></TR>
</TABLE>
</center>