Edit header.....include AdSense

[amagab]

I want to edit my header and include a Google AdSense banner on the right side of the logo.

Currently, the start of my header code (from logo to beginning of nav menu) looks like this:

-----------------------------------------

<!-- logo -->
<a name="top"></a>
<!-- /logo -->

<table width="800px" border="0" cellpadding="0" cellspacing="0" align="center" style="background: #d0dfeb; border-left:1px solid white; border-right:1px solid white;">
<tr>
<td class="bodyline"><table width="100%" cellspacing="0" cellpadding="0" border="0">

<tr>
<td align="left" width="100%" valign="middle"><img src="http://www.mysite.com/boards/images/xx/misc/tlogo.jpg">
<table width="100%" border="0" cellpadding="2" cellspacing="0" background="http://mysite.com/boards/images/xx/misc/cattitle_bg2.gif">
<tr>
<td height="39" align="center" valign="middle" nowrap="nowrap"><span class="mainmenu">&nbsp;
<a href="http://www.mysite.com/" class="mainmenu">Home</a>&nbsp .........

--------------------------

Can someone PLEASE tell me where and what to insert so I can place an AdSense banner.

Many thanks!