Blokie,
Most airline based cadet programs around the World require the applicant to at least have permanent residency in the country the airline is based. If you're trying to get in quick, you'll need to apply in your neck of the woods, or somewhere you have citizenship.
Depending on the carrier and the school, you can apply as a foreign national to study an "airline cadet training program", however this usually occurs under a private training arrangement with no involvement of the airline (no idea on whether this is the case for the new QANTAS training regime). You get the same training, but no specific job prospects at the end.
If you are looking for direction, and a more focused training program to get your basic quals, take your pick; just don't expect an airline job at the end. If you want to get an airline job, an airline sponsored cadet program may be the way forward.
Icarus