So if you read my welcome thread you'll know I haven't played since Red / Blue days. Needless to say I am a little confused. I recently bought a DSLite off a lady from work for $50 and went out and bought Black Version, for some reason White Version is sold out everywhere

So I'd like to ask the community some questions.
Is there something wrong with Black Version?
What are Ev'd Pokemon?
What are Shinies?
And thats all I can think of now but I will think of some more I am sure, back to my Black Version :D Thanks in advance!