Start Page has <Login> button before login.
You can go to Login page by pressing this button.
Login Page has <User Registration> button.
You can go to User Registration page by pressing this button.
Specify User Name and Password as you want, and press <Register> button. If the user name is already registered, an error message is shown. Try the other user name.
When your registration succeeds, you can proceed to Login or go back to the top page.