Yes it was a similar question but the link provided links to a tutorial that I have successfully completed, NOWHERE in the tutorial does it ever mention the Sign Up service ? Please read my original question.

Yes I did look at this document but it is more for "Signing in" and not "signing up" I am trying to have the App and the user create the user in the database not by entering the user details myself.

I have set up a new database and imported the sign up service which is appearing in the left column, could some one give me an idea of how to actually use this service ?