Hi,
for the situation in NZ pls. have a look here:
The Physiotherapy Board of New Zealand > Registration - Overseas Qualified Physiotherapists
The application cost is NZ$ 1.200,-.
On top of that is all the copying and certifications, the lawyers cost for the declaration and of course your time spend on collecting everything for your portfolio.
From all the reports here in this forum, a British BSc within the last few years should have no problems obtaining NZ regsitration.
Once you are registered, you will need to apply for and get an Annual Practicing Certificate.
The Physiotherapy Board of New Zealand > Annual Practising Certificate
This is currently $250,-.
You will then be able to apply for registration under the TTMRA in the Australian state you would like to work in (Australia does not yet have a national Physioboard).
http://www.physioreg.health.nsw.gov....alrecjan08.pdf
This is an example for NSW, the current coast is $110,-.
It took me about 5 minutes on the net to check this.
So, I cannot believe that this is actually the info you were looking for.
Could you specify more???
Cheers,
Fyzzio