#header{
position: relative;
top: -50px;
margin-left: 1px;
background: url(images/header-trans.png);
height: 204px;
width: 555px;
}

* html #header
{
_background-image: none; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='images/header-trans.png',sizingMethod='image');
}