[QUOTE=Unfortunately, I can't get Stanza to connect to the Calibre server.[/QUOTE]
I just tested mine and now it doesn't work either

It was working a couple days ago. Maybe it is version 0.7.1 I installed recently.
The first thing to do is verify that the Calibre web server is running. On the content server window where you start your web server, there is a 'test server' button. Press that and see if your web browser shows your catalog. If the ip address it uses is 127.0.01, change that to your real ip or host name and verify again.
If that works, then you know your content server is working. What I ended up doing was manually adding a book source in Stanza. For the url use
Code:
http://my.ip.address:8080/stanza
Change 8080 to whatever port your Calibre content server is on. I also left the username as Calibre and blank password