I NEVER get tired of this song and performance. But I have been literally searching for over four years now for a translation - or even just the lyrics in Maori. You can even see the proof here - I begged for a translation on a Maori web site in November 2005 - I've also asked anthropologist friends. And to this day, I've still got bupkis.
I do know the song is in B major because I figured it out on the guitar once. I'd love to do a whole Maori musical.