Is there anyway to test an ASP.NET webpage fully with Expression Studio or is it only possible to see a static view of the page and no way to interact with any of the elements on the page?
I was under the impression that SuperPreview was effectively a static rendering of the page - you get DOM interactivity, but that was about it - it's not a webserver that can serve pages.
With a little bit of fiddling, you can get IIS up and running on XP or Vista (down to Home Premium I think - that's what I'm running with no problems), or you could install Visual Web Developer Express and use it's built in web server to test your site - VS and Expression share project files, so you should be able to open the site/pages with no issue.