Error in configuring NWDI - by using configuration wizard

Hello,

I have installed CE 7.1 and like to install NWDI. It requires me to execute some configuration wizards from administratio tool of the NW CE server. I am following the configuration guide for NWDI and initiated a "Change Management Service (CMS): Create an Application Skeleton". It asks me to provide a CMS URL when I give it http://localhost:50000 or http://cmsmain.localhost:50000 it give me an error that CMS is not running or the URL is not correct like this.

I got to know that CMS is builtin in NWDI and NWDI is builtin in NW CE 7.1. How to check whether CMS is installed. Or any idea to configure the NWDI.

Regards,

Naeem Khan