The question of stepping E8200

I want to buy a processor E8200, E8200 Core processor stepping There are two versions? What is? What is the latest step?

there is only one version of
Intel Core ? 2 Duo E8200 2.66GHz 6MB Wolfdale 45nm C0 65W 1333 F7

CO step.you ask the process is the right number? the new 45nm is the , Before the 65nm, the number is not clear that the new
45nm, the production number for BXC80570E8200, as a batch Q748A372, for the version number E29768-001.'s Largest operating voltage to 1.225V.