Hey~ Voila ton thème !

Clik!

<- Ya un fond la x))

Clik!

CODES :

 #body {background-image:url("http://img0.gtsstatic.com/wallpapers/ce09e57dd15a7b8055cc510fac4c3e92_large.jpeg");
    background-position: center left;
background-repeat: repeat;
background-attachment: fixed;
font-family: arial;
text-align: justify;} 

#header {    background-image:url("http://ekladata.com/u7nxqfppMVreASQbZ1A0tA7sq3E.png");
    background-position: center top;
background-repeat: no-repeat;
background-attachment: absolute;
height: 355px;}

 .module_menu_type_lastvisitors img {
 max-width: 60px;
 border-radius: 60px;
 }
.module_menu_type_lastvisitors img {width:100px;
height: 80px;margin-bottom: 5px;border: 5px solid white;
box-shadow: 0px 0px 2px #bababa;opacity: 0.9;margin-right: 5px;margin-left: 7px;
 -webkit-transition-duration: 0.3s;
     -moz-transition-duration: 0.3s;transition-duration: 0.3s;
-webkit-transition-timing-function: ease-out;
     -moz-transition-timing-function: ease-out;transition-timing-function: ease-out;}
 .module_menu_type_lastvisitors .module_menu_titre{display: none; border-bottom: Xpx ridge white; }
.module_menu_type_lastvisitors {position: absolute;top: 420px;margin-left: 680px;}

.module_menu_type_shoutbox{position: absolute;
                         top: 360px;
                         left: 250px;
                         right: 500px}
 .module_menu_type_shoutbox{ margin: 15px 70px;}

 .module_menu_type_shoutbox [name="shoutbox_msg"]{width:30%}

Voila Voila~