I had a version of CS2 and installed meta raw. I was then able to edit Nikon D4 NEF raw files using CS2, which I could not edit them in before. When you open the raw files, you get a popup window asking if you want to use Adobe Camera Raw or Meta Raw. Other than that, it seems to work fine.
|2014_1211_140657AA by old shutter bugger|
from The Bride
|Overloaded by NZ Scott|
from Your City - Delivery Boy
|Barley by Will B Milner|
|APPLE & ROACH by TX Photo Doc|
from Delicious - Unpalatable