Yes, nffc's advice was correct. Happy it worked for you. If someone else, however, ends up on this post with a different problem that gives messages that look similar take a look at this:
http://whswebsite.googlepages.com/
It is a cpmplete set of instructions concerning (more complex) websites on WHS. The reason I mention it is Part 5 is the Trouble Shooting section and the guide has screenshots like what you posted.
BTW, this guide is how to turn up an ASP.NET Website on your Windows Home Server.
The Trouble Shooting section, however, might help others as well.