Transparent PNG Image in HTML

I would like to have this picture's开发者_运维技巧 background transparent to the webpage I am creating. I am using Paint Shop Pro 9 and am having trouble making the background transparent. I tried the PNG optimizer but still shows a white background.

Thanks

It shows up correctly (with transparency) in my browser. If you're having problems with IE6, try this:

<div style=”position:relative; height: 188px; width: 188px;
filter:progid:DXImageTransform.Microsoft.AlphaImageLoader 
(src='http://www.clker.com/cliparts/7/2/d/9/11954460371278569538three_palm_trees_gregoir_03.svg.hi.png',sizingMethod='scale');”></div>