ViewNX2, Nikon’s free image management an editing software , now available online on Nikon Digitutor. Digitutor is Nikon’s way on providing tutorial / howto/ other useful resources for its users. Covers from D40 to the latest Nikon camera : Nikon D7000 .
If you dont have the software yet , download it for free at Nikonimglib
visit Nikon Digitutor