craic,
That is a tough question. It is quite possible that the 1500 searches you are seeing are being done by airlines to which you have not applied. Your CV has been reviewed twice manually, so you know that at least one airline has shown interest in your CV.
Also, because you live overseas you will probably need a bit of advance notice for interviews - often airlines interview people at the last minute, they call you today and expect you to be there in 2 days, so this limits that opportunity for you.
Do you have an aussie contact address, ph number and email address you can use instead of using one in the UK? You may find yourself having more success by trying that method.
Good Luck!
SG
