It's the other way around.
You have to get a Gamstop Celebi to activate the Zorua event.
You cannot just catch a Zorua. There are a couple ways to get Zorua. Either from a Zoroark from an event (there have been two already) and breed it. Also, you can transfer the Celebi that was distributed in the Generation IV games to you generation V game. If you bring this Celebi to a girl and a boy in Castelia City's GameFreak building the boy will change out of its illusion and back into Zorua. You have to trade Zorua for Celebi. Other than these two ways, you cannot get Zorua. Sorry!
To get Zorua, there was an event at gamestop where you could get a free Celebi on every DS Pokemon game you have but the way to get him is have Celebi in your party and go to Castelia city. Then you find the house with a person next to a Zorua and if you have Celebi in your perty, he will join you. Zorua will then evolve into Zoroark at level 30.
Yes
Use the Poke Relocator to get the most recent Event Celebi onto White (no other Celebi works). Go to the girl in Castelia City who you talked to to register Zorua in your pokedex. Make sure there's a space in your team and you have Celebi in hand, along with at least one pokeball of any kind. If your Celebi and Zorua get on happily, Zorua is yours.
Its an event pokemon in castelia city;~]
Celebi.
If the Shiny Celebi does not work, you cannot get a Zorua. On Pokemon White, this is the only way to get that species.
If you transferred Celebi from using the Relocator, then you should go to Castelia City and go to the building on the northeast from the Pokemon Center. Bring Celebi to the building where there should be two kids. One of them will turn into a Zorua and it will automatically go into a Pokeball and into your Party if you have enough room.
Yes
Zorua can be found in Castelia City by event with fateful encounter Celebi.
Zorua is obtainable by transferring your special Gamestop event Celebi to your White. In Castelia City, there's a boy that does not speak. Speak to him with Celebi in your party to start the event and get your Zorua. If you did not get your special Celebi during Gamestop's event, there is no current way to obtain Zorua. But it is not legendary so you can breed it. Because of this there will be many people at the GTS willing to trade one.