See anything-pages.com/ and look at World Series 2010 sponsorship logo on left. There is an edge along the top and left sides of the logo which is rendered in this markup:
<div style="position: absolute; float: left; left: 0px;">
<img width="200" height="200" src="/themes/zen/atdwh_classic/images/2010 JLBB-30 year - sml.jpg">
</div>
What's causing that?
The border property is "border: 0 none;"
I see the color difference when I lower the contrast of my ultrabright TFT below 50 percent. I copied the image into photoshop and it turns to have a background of #fdfdfd while your webpage has a background of #ffffff.
So, to fix this problem either make the image background #ffffff as well (or better, transparent), or make your site's background #fdfdfd as well :)
Update: anyway, I made it transparent. Replace it with the below image and retry:
