Was the Army numbering system still the same for Malaya, Korea, Viet Nam?
No. The system changed with the introduction of the Australian Regular Army (ARA). With that the first number indicated the State of Enlistment. As Queensland is the First Military District any soldier who enlists in Qld would have his Regimental Number start with the number 1. (The second number, if a 7, indicates a National Serviceman from the Selective National Service Scheme of the 1960s).