Trying to centre my logo image

[Spank]

Trying to centre my banner I can't seem to do it. Any ideas? http://www.misc-world.com/endeavour
Here's my header template:

<!-- logo -->

<a name="top"></a>
<table>
<tr>
	<td align="$stylevar[center]"><a href="$vboptions[forumhome].php$session[sessionurl_q]"><img src="$stylevar[titleimage]" border="0" alt="$vboptions[bbtitle]" /></a></td>
	<td align="$stylevar[center]">
		&nbsp;
	</td>
</tr>
</table>

<!-- /logo -->

<!-- content table -->
$spacer_open

$_phpinclude_output