My mistake. I followed the link in the article, and it too me to http://my.opera.com/community/party/ Where it says, on the right hand side- "No more free drinks! Cheers guys, it was a blast! Millions of people (literally) got their free registration code at our party, but the offer is now over. But don't despair - you can still get Opera for free by joining our affiliate program. Just put an Opera-button on your webpage, get 250 people to click it, and you're home free!"