Do you have an ACTIVE login for the iTi Website (http://www.sheetmetal-iti.org)?
If Yes, you can login with the same username and password you use for the iTi website. Click on the desired class, and select Yes when prompted to enroll.
If No, go to iTi's registration and account activation page at https://www.sheetmetal-iti.org/regme.asp to activate or request an account.
Once your account has been activated, you can use the SAME username and password to login here and start learning!