I too followed the directions and it didn't work properly. I'm not gonna gripe though because it seems to be a very cool app. I appreciate someone who is willing to share their work with the community!
I think (keyword think) if you manually browse to /setup/setup.aspx the setup wizard will run. If that doesn't work try browsing to /setup/default.aspx. I deleted this folder after installation (as per directions) and can't remember exactly
which one it is.
I hope this is helpful. If not, at least I tried :-)