I have created my custom User content type and it works fine, Including the confirmation message i get when i create a new user(I just used the configuration Tab to change the message).
What i can not do is to have a different confirmation message when i change some data of an existing user. So what i actually want is that the same form will send one message for creation of a user and another message for modifying the existing user.
I edit the user with a menu Users Manger---Edit user Profile