sample project endpoint

In the sample project (sample-soapui-project.xml) which comes with SOAP-UI version 3.6, one of the endpoints is listed as http://www.soapui.org/sample. If I try to use a browser to go there I get an error 404: not found. Also, if I browse to http://www.soapui.org, then open up Service Mocking and click on Getting Started I get the same error. The reason I was checking this is that I was going through the Sample Project Tutorial, and when I run the mock service in Web Service Inspection step 4 I get the error UnknownHostException. Any suggestions?