I am having a problem with the compatibility of my website in different browsers.

URL is : http://www.trafficwebmaster.com

After testing in http://browsershots.org , I found that the site is perfectly normal in the following browsers

Opera 9.26
MSIE 5.5
MSIE 7.5
Safari 3.0.3
Flock 1.0.8

In all other browsers a part of the left navigation bar gets cut. What is the problem. Could you explain what element is wrong in my site's compatibility so that I can correct it. I am enclosing the css file along with this post.

Thanks,
Hemanth