Hi,
what's confusing??? You need to be registered with the Australian Physiotherapy Board. There, it says quite clearly that you have to contact the Physio Council to have your qualification assessed. They will tell you what you need to do next - noone else can.
See here:
Physiotherapy Board of Australia - Overseas Practitioner Registration
And then you look here:
Overview of Assessment for Registration Purposes — Australian Physiotherapy Council
Assessment of Equivalence of Qualification — Australian Physiotherapy Council
Good luck,
Fyzzio