What in the heck is the latest drivers for Nvidia cards?

I keep hearing tell of Detonator 43 drivers but all I can find (for Windows ME, at least) are 41 drivers. What's the absolute newest one?

The latest properly tested drivers are 41.09 I don''t know if there are any beta drivers available that are higher than that.

You can get 43.00 drivers at http://www.overclockercafe.com/downloads.htm but I don''t know how official they are, or how good they are.