Assuming "he" means me, I mentioned repeatedly that that property only works in Gecko browsers.
Safari supports that now too in the latest nightly builds, with both the "-khtml-" and "-moz-" vendor prefixes.
IE can do it with VML or some such, IIRC.
http://blog.codedread.com/archives/2...mlsvg-htmlvml/
I've never tried that technique myself though. I imagine most people shy away from it since it requires IE's proprietary VML. I've been interested in giving it a spin, maybe even writing a JavaScript that can do rounded corners al la Dean Edwards's IE 7 JavaScript, but I just haven't had the time.
Again assuming "he" means me, and "book" means Beginning CSS, nothing in Beginning CSS was written with Dreamweaver in mind. In Chapter 2 I explicitly say not to use a WYSIWYG editor for any of the book's examples, and go on to say why that is a bad idea, at least as far as Beginning CSS is concerned. That's not anything against Dreamweaver, but, there are already Dreamweaver books. This one is about writing CSS, HTML, et al, by hand.
Regards,
Rich
--
Author,
Beginning CSS: Cascading Style Sheets For Web Design
CSS Instant Results
http://www.catb.org/~esr/faqs/smart-questions.html