We had this in another thread already; you always have to consider the following things:
Microsoft, Sony and VGChartz mean different things when they say Europe: Microsoft covers only the European Union I think and the sales reported in that article are from December (definitely - Microsoft announced 8 million Xbox360's in Europe in december, I doubt they didn't sell a single unit during the last 3 months)
And the news piece is here: http://news.vgchartz.com/news.php?id=3150
It just wasn't that popular which is why it is hard to find (it has only 1,000 views)
Anything else you want me to explain?