Go in to GTS and if your request was made possible you will receive the Pokemon you asked for and the Pokemon you deposited will be gone. If not, when you go in, nothing will happen.
When you check your GTS staus, you receive a traded Pokemon.
Yes, there is a GTS in Pokemon Black and White. It is up in the Pokemon Center and you can access it once you get the first badge as always.
At the GTS in any Pokemon Center.
use Pokemon GTS
You can't check what Pokemon are up for trade beforehand.
you go to the Pokemon center top right and say Gts
Sorry, you can only get it by GTS or from transfering it from older games.
Because you don't have the pokemon in the pokedex
You can't. Trade on GTS negotiation.
you can only get it by GTS or by special events. or if a friend has it.
Go to the top floor of the Pokemon Center and talk to the farthest person on the right. The second option is the GTS. Click on it, save the game, and connect.
You can fight Cynthia in black or white after you beat the elite four and ask for him/her at GTS.