OK, I downloaded and tried out Expression Web.
If you’re starting from scratch, get it.
If you have a large existing webpage–forget it. It will not easily convert it. It will tell you about all kinds of errors due to changes of HTML terminology (font, align, border, etc., are all gone; all pictures must have an “alt.”).
If you seek to reorganize your files (e.g., move all images to an “image” folder), it will not make the corresponding changes in the pages (as FrontPage does). It will not automatically correct relative URLs.
Oh, what a headache this has all been, discovering these problems. So I’ve uninstalled Expression Web and will stick with FrontPage.
I’ve discovered that I can solve most of the problems by exploiting some of the features of FrontPage 2003 that I hadn’t gotten into using. I’ve had some fun revamping the layout of a couple of my pages: The Oak Tree and The Crowther Connection.