Unless Australia is for ever, look at USA based ffp's. AA or UA as starting points
Qantas, United, Delta & Virgin Australia & Hawaiian fly Australia to USA non stop
For your Australian & international flights will you have choice of airline ? Or subject to a corporate travel policy.

I note you other question http://www.flyertalk.com/forum/briti...k-address.html

Look here
http://www.flyertalk.com/forum/onewo...help-here.html
http://www.flyertalk.com/forum/star-...post-here.html