If you have already created an account, or have completed the "Use a code" steps, select “Sign in” to enter your user name and password. You will see the screen below after clicking “Sign in.”
Enter the username you set up in the “Use a code” step and then click “Next.” Then enter your password (case sensitive) and click “Next." If you do not remember your password, you can click on the "Forgot password" link to reset it. See Resetting Your Password for more information.