go to the immigration (the big one) and bring the necessary requirements such as birth certificate of your children, passport and photo attached with your application. for the parents requirements are passports, QID. i cant remember if they required letter from your employeer.(just prepare it for you the letter) go typing there in moror, after typing proceed to the captain for approval in the mezzanine or 2nd floor ask to the typist if you dont know they will tell you. bring the xerox of each requirements and the original too.
you just try!!! good luck