I just thought you might want to know that the primary content for the NetAdvantage Icons is misplaced (I assume) on the page for IE 6.
http://ko.infragistics.com/netadvantage/icons.aspx#Overview
For me, the Icons content is off the page and I have to scroll down to see it. Because of this, I didn't notice it at first and had to hunt for it. It seems to work fine in Firefox 2.0.0.15 though.