Fix PNG Transparent on IE6 by CSS.

Eaxmple.

<span style="width:247;height:216px;display:inline-block;filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='test.png');">
<img style="filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" src="test.png" width="247" height="216" border="0" > 
</span>

Reference : http://www.memo8.com/toolkits/archives/81