guarda se può andarti bene
non è perfetto lo devi risistemare un attimino

codice:
<html>
<head>
<style>


body {
font-family: Verdana, Arial, Helvetica, sans-serif;
/*font-size: 12px;*/
text-align:center;
margin:auto ;
background-image: url(../images/pat_bckgrnd.gif);
}

//header in alto
#bloccosito{
text-align: left; 
width: 1000px;
height: 800px;
border: 1px solid black;
background-color: #ff0000;
}

#header{
width: 1000px;
background-color: Aqua;
height: 157px;
overflow: hidden;
}

#menu_verticale{
 width: 150px;
 height: 500px;
 float: left;
 border: 1px solid #000000;
}

#centro{
float: left;
width: 700px;
height: 400;
background-color: White;
border: 1px solid;
}


#colonna_sinistra{
width: 150px;
height: 400px;
text-align: left;
margin: 0px;
border: 1px solid #000000;
float: left; 
}

#footer{
width: 850px;
background-color: #01A558;
height: 100px;
float: left;
}

</style>
</head>

<body>
<div id="bloccosito">
  <div id="header"></div>
  <div id="menu_verticale"></div>
  <div id="centro"></div>
  <div id="colonna_sinistra"></div>
  <div id="footer"></div>
</div>

</div>
</body>
</html>