Is this latest Mandriva 2012 ?
 

You can get it here:

http://mirror.internode.on.net/pub/m.../2012/alpha-2/

As you easily should be able to see on the Mageia homepage the newest version of Mageia 3 is the Alpha 3 version.
So no, this is not the newest version of Mageia. Please do your own research in the future (at least visit the website of the distribution you seek information on) before asking here.

mandriva and mageia are the same?

Ooops, sorry, I mixed that up. Mageia is a fork of Mandriva, seems that that slipped me away.
Yes, the alpha2 is the latest snapshot of Cooker, Mandriva's development version. More info on Cooker can be found here: http://wiki.mandriva.com/en/Cooker

You can also try out the "Mandriva Linux 2012 Tech Preview"
http://distrowatch.com/?newsid=07295

.. which is the third hit with Google 'Mandriva 2012'
https://www.google.com/webhp?hl=all#...iw=994&bih=544

.

2011 is working really well.

But switching up to cooker breaks my sys (my bad).

I have a couple distros running and I feel Mandriva is still very, very reproducible.