To save ya a bit of time with your review HG
Pulled from the NAS website:
http://www.dotars.gov.au/airspacereform/I_Timetable.htm
Class G
Stage 1 (first phase)
Introduce CTAF on multicom of 126.7 MHZ at all aerodromes that are not currently CTAFs or MBZs.
Stage 2 (third phase)
North American CTAF procedures will apply at all aerodromes in Class G airspace. (This includes MBZs reclassified as CTAFs).