Hi It would seem that for certain pages on www.au.debain.org, for instance http://www.au.debian.org/distrib/vendors having your browser set as en-au as your only language results in pages in Norwegian.
I suspect that en-au is not known by au.debian.org and for some reason it's default is debian. I would suspect that people with a predisposition to use au.debian.org would be likely to use en-au. Perhaps English would be a better default language for this site, give that the official and dominant language of Australia is English.. I have resolved this problem by choosing adding the language "en" to my browser's language list - the problem I describe also occurs with en-us, though I haven't tested other en-* variants. Ironically this problem does not occur on www.debian.org, which is hosted outside of Australia. -- Horms