How do you trade Celibi from ur pokemon soul silver/heart gold to ur pokemon black/white game?

Okay, there's 2 solutions: Solution 1 is the Pokemon Relocator, which is what you need to use if you plan on getting Zorua. To unlock this feature, go to the building on the left side of the street in the far back of Castelia City and talk to one of the scientists on the top floor and tell him the code "Everyone Happy Simple Connection." This mode also works to transfer over the shiny Entei, Suicune, and Raikou to catch the wild Zoroark in Lostlorn Forest. This method only works for the shiny Entei, Suicune, and Raikou as well as Celebi. The other method is to beat the game and then use the Poketransfer Lab. Unfortunatly, this method does not allow you to get the free Zorua or wild Zoroark. But the relocator only works for the specially distributed Entei, Suicune, Raikou, and Celebi.