As this is a new qualification in our Tafe system for Enrolled nurses it has never been tested overseas.
Though through critical thinking and taking into account as I said before, they are assessed in modules not subjects in Tafe and as it does not lead to a RN qualification in Australia where this diploma is administered, it would be again safe to say that it would not qualify you in the US as they would be wanting a copy of your RN registration in Australia before they would consider your application.
If they did not want your AHPRA registration they would be wanting to know why, as we do not sit a national exam, so after university or Tafe you apply for registration, I would think all Nursing boards would be wanting that Australian RN registration before assessment. It you would only have EN registration, this would not qualify you for the RN NCLEX in the US I would imagine.
As I said before I have no past experience in this
I think where you are getting confused as in the US there are 2 ways of becoming an RN, not in Australia. I do not think the Diploma at TAfe would be considered the same as an Associate degree at a Community College in the US.
An Australian Enrolled Nurse as far as I know, has never been accepted as RN in the US, its hard enough for an RN from Australia with a Bachelor to be accepted in the US and they usually need some extra study first in MID and Paeds, before being offered the NCLEX.