If you FTP a new web page, but you can't see the new page on your browser, the problem is often a caching problem.

Updated index.html file

type in the exact URL http://www.yourdomain.co.nz/index.html and see if the correct page loads or :-

drop the www part of the domain name - http://yourdomain.co.nz

If you see the correct page load you have a caching problem either with your ISP provider or you are caching information with your local web browser.

If it is your local browser force a reload of the page
If it is your ISP provider - you will have to wait until the ISP's Proxy cache is refreshed.

The situation will come right