how to implement fancy search box?

Hi, I see that within the style.css file there is code for a fancier search box (including graphic.) However I can't seem to implement it properly.

I added this to my page.tpl.php file:
<div id="searchform"><?php print $search_box ?></div>

However the search box was placed top-right, and covered up by other blocks. So I removed the positioning within the #searchform code. So now it appears within my content window, but doesn't look quite right (picture is attached.)

Any ideas on how I can get it to use the fancy search graphic (search-btn.gif) and/or position it top-right so other blocks don't sit on top of it?