For Kennedy's status - http://www.globalsecurity.org/military/ops/where.htm
As to the Aussies, it's totally conjecture on my part. But we are in the process of opening some kind of forward training base with us.
http://www.spacewar.com/2004/040607024347.fzd44jna.html
They are also joining us on the SDI.
Might as well put this up too.