Principal Financial Group – IDI Illustration System Training Posted on July 23, 2015July 23, 2015 by Shelly Whitaker This content is restricted to site members. If you are an existing user, please log in. New users may register below. Forgot Your Password? Existing Users Log InUsernamePassword Remember Me Forgot password? Click here to resetNew User? Click here to register Posted in Bulletins, DI, Disability, Webinar.