Betsy_1983 - even if you did apply to Qantas its highely unlikely you would get in unless you have a Thai, Kiwi or English passport.
Unfortunately the bean counters are outsourcing as many jobs as possible to overseas bases leaving no change of Australians getting a job with the national carrier.
The brand 'Qantas Spirit of Australia' is fast going down the dunny. Mate apply to Emirates or any other international carrier, get some experience. Hopefully when the current management (terms used very loosely) go, the new bosses will realise what a mess has been left and start hiring Australian's again.
About 150 fixed term flight attendants have been let go recently due to the opening of the London base (to be replaced by POMS).