I was intrigued to find out the source of the transcript. It looks to be the official Hansard which up till now has been provided only for the proceedings of the House & not Select Committees.

Parliament's website has this to say on this development:

"During 2007 some evidence and advice released by the Commerce Committee and the Justice and Electoral Committee will be available here. Selected papers from other select committees may also be published on this page."

http://www.parliament.nz/en-NZ/SC/Papers/

This is a great development in open democracy which I hope Parliament will extend to all select committee proceedings as happens in other countries