The basis for my web site is x2t which (just like this XOOPS web site)looks terrible through particular browsers, especially IE5x. So bad infact that I decided not to even let clients in if they were using any of the above.
I found several articles where the authors would slate web developers who "can't develop web sites good enough for their particular browser type."
I felt that less damage would be done in the longer term if I redirected clients to a page that suggested their browser was in need of an update and supplied the link to do so.
Regards, UKDave