Hi there Traveler,
As very helpful Shenanigins has already mentioned your best bet is to contact nursing council NZ on that link she provided. Over here you can't change schools from 2nd year on, Would you be doing your 2nd or 3rd year? You would more chance of getting in if you are starting your 2nd year, I only know this, as I looked at changing schools in my third year and its not possible.
We also have many different students from different countries, I am sure you would have no problem at all.
Wish you all the best!! Would be great to have you! Let me know if I can help in any other way.
Cheers
Angelchick