When we switched Onlineblog over to a design that uses cascading style sheets (CSS), we had to accept that some older browsers wouldn't be able to look at it any more. That's why there's a message in the top right hand corner of this screen about it looking better in newer versions. However, I think I much prefer Mac weblog Daring Fireball's comments on the issue:
"If Daring Fireball looks like shit in your browser, you're using a shitty browser that doesn't support web standards. Netscape 4, we're looking in your direction. If you complain about this, we will laugh at you, because we do not care. If, however, you are using a modern, standards-compliant browser and have trouble viewing or reading Daring Fireball, please do let us know."
Couldn't put it better myself...