I thought DAZ was Digital Art Zone anyway ?

You could always WHOIS the site and see where that takes you.

ETA: 

http://www.google.com/search?q=site:artzone.com Gives loads of hits but non of the links work.

The only one that looks like anything to do with DAZ is:

ArtzoneThis page has moved. Click here to go back to the main page. artzone.daz3d.com.
artzone.com/index.html - 1k -Cached - Similar pages