The ads at the top (which you probably don't see now) are flash animations. The site doesn't need flash to run, but the flash animated ads support the site and keep it free to use.
Yeah, I hate heavy flash animated sites and sites that only use flash. I don't visit those sites often but once in a while I need info. So I use IE for those sites... and anything else that requires activex, java, whatever. On the other hand, for clean surfing with no extras i use Mozilla fine tuned to block everything but the stuff I want to see.