Hola Gastón! te paso el código:
<!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">
#apDiv1 {
position:absolute;
width:1024px;
height:54px;
z-index:1;
left: 143px;
top: 329px;
}
#apDiv2 {
position:absolute;
width:200px;
height:115px;
z-index:1;
left: 443px;
top: 114px;
background-color: #000033;
}
#apDiv3 {
position:absolute;
width:304px;
height:256px;
z-index:3;
left: 60px;
top: -257px;
}
</style>
</head>
<body>
<div id="apDiv1"><img src="img/top_barra.jpg" width="1024" height="54" />
<div id="apDiv3"></div>
</div>
</body>
</html>