Problem with Tomcat default port (49981)

Hello everyone,
I have downloaded the naturalONE (trial version) for to test the web services.
At the tutorial (How to publish a NaturalONE subprogram as a Web service) I follow all the steps without any problem, but at the point 1.14 I must select the line localhost-49981 for start the welcome page of Web Services Stack. But the link seems broken, and I haven’t access.
Where’s the problem? I must configure something in NaturalONE?