Ad Box Question

i have this image hosting site http://www.pic-hoster.com/ and i want to put an AdSense block to the right of the upload forms how would i do this.

thanks in advanced

 

Something like this maybe. There's probably a better way because I'm still learning it

.ad_box
{
width: 468px;
height: 60px;
float: right;
}

<div>
<div class="ad_box">
<!-- ad code -->
</div>
<!-- form code -->
</div>

 

simple but it dont work with the script im running thanks any way