The document published at
http://www.e.govt.nz/policy/open-source/open-source-legal is pure and utter
drivel.
There is a complete failure to recognise that Application Software is not
the same as Data.
No licence other than the author's copyright would apply to a document saved
in any application, whether it be closed source MS Word or open source
OpenOffice.
And here's the amazing - totally overwhealming fact that obliterates any
ground you are standing on....
http://uptime.netcraft.com/up/graph/?host=www.e.govt.nz
Your web server is running on Apache, the worlds most-used web server. A
stunning example of open source software quietly doing its job without the
closed-source FUD that Chapman Tripp have pushed on you.
"Open mouth, insert foot, repeat."