I downloaded the sample web service and put it on our test intranet server, then added it in IIS per the instructions. I'm able to browse to it and see the available methods. When I add it to the Web Services in configuration and test the connection, I get a "404 not found" error.
My guess is that it is a permission issue. Putting credentials in for authentication doesn't help. I don't really have any experience with web services so I'm not sure what else to do. Should it be able to connect to a service on an Intranet server?
The goal with the web service is to pass the results of an approval workflow back to an internal system.