WebService Connector - FIM 2010 R2

I am new to webservice  connector.I am trying to connect to a webservice created by me which returns a string.I want to import that string to CS.I tried to configure with WS configuration tool but no luck.I created a webservice call in Delta import also.

Can anyone give a example so that I can start off with that?I already have the MS document(Connector for Web Services).