Did you update your expression web 4? If not, you gotta! There is new support for CSS 3 Properties in the Style Builder! This means you can easily make rounded corners without a single image and add a drop shadow (box shadow) to your html elements. Go download the Service Pack 1 Service Pack 2 is now available.
I am in the midst of making new Video tutorials that teach you how to use css3 and HTML5 in the newly updated expression web 4. Most of these New videos will be added to my Training dvds for beginners.
But some of the videos will also be free to watch!
Check back for more info!!