Hola reyesoft fijate quise hacer esto pero no me funciona me daje un espacio enorme en derecha de la imagen que sera
 
 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<TITLE>Busqueda de Imagenes Publicadas</TITLE>
<META HTTP-EQUIV="Cache-Control" CONTENT ="no-cache">
<META HTTP-EQUIV="Pragma" CONTENT="no-cache"> 
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css">
html,body{margin:0;padding:0}
#wrapper{float:left;width:100%;}
#content{margin-left:200px;overflow:auto;}
#navigation{float:left;width:200px;margin-left:-100%;overflow: auto; background-color:#CCCCCC;}
#extra{clear:left;width:100%} 
#contenedor
{
text-align:center;
margin:0 auto 0 auto;
} 
.alineamientos_fotos
{
	float: left; 	
	margin:9px;
	text-align:center;		
	border-style: solid;
	border-color: #CCCCCC;
	border-width: 1px;	
} 
.thum
{	
	background: #fff url('cargando.gif') no-repeat center center; 
	border-style: solid;	
	border-color: #9999CC;
	border-width: 1px;
	margin-left:9px;
	margin-right:9px;	
}  
#contenedor_del 
{
    border:1px solid #333333;
    width:100px;;
    padding:5px;
    margin-left:200px;
}
#boton_eliminar 
{
    border:1px solid #FF0000;
    position:relative;
    width:20px;
    height: 21px;
    top:-80px;
    left:10px;
    margin-top:-40px;
    z-index:2;
} 
</style>  
</head>
<body class="body">
<div id="container">	
<div id="wrapper">
<div id="content">
<form name="formulario" method="post" action="download_multiple.php" target="send">
<div id="contenedor"> 
<div class="alineamientos_fotos">
<div class="contenedor_del">
<a href="#">
<img src="prueba2.php.jpg" width="100" height="100" VSPACE="8" class="thum"></a>
<img id="boton_eliminar" src="del_thum.gif" width="16" height="16">
<br>
<input type="checkbox" name="down_imagen[]">
</div>
</div> 
<div class="alineamientos_fotos">
<div class="contenedor_del">
<a href="#">
<img src="prueba2.php.jpg" width="100" height="100" VSPACE="8" class="thum"></a>
<img id="boton_eliminar" src="del_thum.gif" width="16" height="16">
<br>
<input type="checkbox" name="down_imagen[]">
</div>
</div> 
<div class="alineamientos_fotos">
<div class="contenedor_del">
<a href="#">
<img src="prueba2.php.jpg" width="100" height="100" VSPACE="8" class="thum"></a>
<img id="boton_eliminar" src="del_thum.gif" width="16" height="16">
<br>
<input type="checkbox" name="down_imagen[]">
</div>
</div> 
<div class="alineamientos_fotos">
<div class="contenedor_del">
<a href="#">
<img src="prueba2.php.jpg" width="100" height="100" VSPACE="8" class="thum"></a>
<img id="boton_eliminar" src="del_thum.gif" width="16" height="16">
<br>
<input type="checkbox" name="down_imagen[]">
</div>
</div> 
<div class="alineamientos_fotos">
<div class="contenedor_del">
<a href="#">
<img src="prueba2.php.jpg" width="100" height="100" VSPACE="8" class="thum"></a>
<img id="boton_eliminar" src="del_thum.gif" width="16" height="16">
<br>
<input type="checkbox" name="down_imagen[]">
</div>
</div> 
<div class="alineamientos_fotos">
<div class="contenedor_del">
<a href="#">
<img src="prueba2.php.jpg" width="100" height="100" VSPACE="8" class="thum"></a>
<img id="boton_eliminar" src="del_thum.gif" width="16" height="16">
<br>
<input type="checkbox" name="down_imagen[]">
</div>
</div> 
<div class="alineamientos_fotos">
<div class="contenedor_del">
<a href="#">
<img src="prueba2.php.jpg" width="100" height="100" VSPACE="8" class="thum"></a>
<img id="boton_eliminar" src="del_thum.gif" width="16" height="16">
<br>
<input type="checkbox" name="down_imagen[]">
</div>
</div> 
<div class="alineamientos_fotos">
<div class="contenedor_del">
<a href="#">
<img src="prueba2.php.jpg" width="100" height="100" VSPACE="8" class="thum"></a>
<img id="boton_eliminar" src="del_thum.gif" width="16" height="16">
<br>
<input type="checkbox" name="down_imagen[]">
</div>
</div> 
<div class="alineamientos_fotos">
<div class="contenedor_del">
<a href="#">
<img src="prueba2.php.jpg" width="100" height="100" VSPACE="8" class="thum"></a>
<img id="boton_eliminar" src="del_thum.gif" width="16" height="16">
<br>
<input type="checkbox" name="down_imagen[]">
</div>
</div> 
<div class="alineamientos_fotos">
<div class="contenedor_del">
<a href="#">
<img src="prueba2.php.jpg" width="100" height="100" VSPACE="8" class="thum"></a>
<img id="boton_eliminar" src="del_thum.gif" width="16" height="16">
<br>
<input type="checkbox" name="down_imagen[]">
</div>
</div> 
<div class="alineamientos_fotos">
<div class="contenedor_del">
<a href="#">
<img src="prueba2.php.jpg" width="100" height="100" VSPACE="8" class="thum"></a>
<img id="boton_eliminar" src="del_thum.gif" width="16" height="16">
<br>
<input type="checkbox" name="down_imagen[]">
</div>
</div>    
</div>
</form>
</div><!--wrapper -->
</div><!-- wrapper--> 
<div id="navigation">
<table width="150" border="1">
  <tr>
    <td> </td>
    <td> </td>
    <td> </td>
  </tr>
  <tr>
    <td> </td>
    <td> </td>
    <td> </td>
  </tr>
  <tr>
    <td> </td>
    <td> </td>
    <td> </td>
  </tr>
</table> 
</div> 
</div><!--container -->   
</body>
</html>