tablolu şu şekilde denermisin?
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>

<body>
<table width="100%" border="1">
  <tr>
    <td>header</td>
  </tr>
  <tr>
    <td>ust</td>
  </tr>
  <tr align="left" valign="top">
    <td>
    	<table width="100%" border="0">
    	  <tr align="left" valign="top">
    	    <td width="25%"><p>1 .tablo gelecek</p>
    	      <p>araya br olacak</p>
   	        <p>2. tablo gelecek</p></td>
       	    <td width="75%"><table width="100%" border="0">
       	      <tr>
       	        <td><p>include yeri
   	            </p>
       	          <p>&nbsp;</p>
   	            <p>&nbsp;</p></td>
   	          </tr>
       	      <tr>
       	        <td>onun altındaki bos yer</td>
   	          </tr>
   	        </table></td>
          </tr>
   		</table>
    </td>
  </tr>
  <tr>
    <td>footoer</td>
  </tr>
</table>
</body>
</html>
Eğer tablolar karışık geldiyse şu şekil divli kullanabilirsin:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<style type="text/css">
.icerik{ position:relative;}
.icsol{position:absolute;width:200px;left:0px;top:0px;}
.icsag{padding-left:205px;}
</style>
</head>
<body>
<div class="tasiyici">
  <div class="ust">ust taraf</div>
  <div class="menu">MEnu gelecek</div>
  <div class="icerik">
  	<div class="icsol">sol taraftakiler buraya gelecek</div>
  	<div class="icsag">
  	  <p>asdasdasd</p>

  	</div>
  </div>
  <div class="alt">alt taraf</div>
</div>
</body>
</html>
divli en basit hali daha da geliştirilebilir.Sorun olursa eğer cevaplarız daha