Thank you for the responses.
I was able to get the demo installed but it acts like something is causing a conflict or something. SmarterMail's service and web interface is still running just fine on all domains, but SmarterTrack refuses to run reliably. I can get one or two page loads and then it stops responding completely, all requests timeout. In the initial setup, I made it through to trying to set up the SMTP connection, but then it timed out when trying to save, and I have no idea whether it saved, or whether there is anything left to do or not. It won't let me continue where I left off, either, it just sends me into the main page now. Attempting to log in with the user I created during setup times out as well, so I am unable to get into the admin section and confirm anything.
I am running it as an IIS7 site, I followed the instructions here
to do so. I specified support.domain.com as the host name in the new IIS site's bindings so that it would only connect on that one subdomain and leave everything else alone. I have tried restarting the SmarterTrack service, the IIS site, and the IIS application pool, several times, it doesn't really seem to do anything. If I wait awhile, I can get it to load the front page and the login modal, but that's about as far as I can get.
Watching the database server, I can see it making connections, it acts like it's trying to do something, but I guess whatever it is doing isn't making it far enough to send back any response.
As I said, SmarterMail is still running like a champ, so I don't think it's an issue with the server overall. Is there anything I can do to try to kickstart it into working? Is it caused by not making it all the way through setup maybe?