As you probably know, to activate the Zorua and Zoroark events you have to get your Legendary Beasts and/or Celebi from your Gen IV game to your shiny new Gen V game. One way of doing that is through the Pokétransfer building once you've finished the game, but this
WILL NOT make the events work. There is a faster way to transfer ONLY these Pokémon, and with all their event powers working, as you can access it almost as soon as you're in Castelia City. In order to make the events work, you must:
- Go to Castelia City
- Go to the path right at the back, behind the fountain area
- Go into the building on the left and go up the elevator
- Talk to the scientist there, and he will ask for a password
- The first part of the password is "EVERYONE HAPPY"
- The second part is "SIMPLE CONNECTION"
- Once you have entered those password in, a new option will appear at the bottom of the Main Menu called "Relocator"
- On a second DS, start up your Gen IV game and make sure that Entei/Raikou/Suicune/Celebi are in your PC with NO HM moves
- Save your Gen IV game and restart your DS
- On your Gen IV DS, go to DS Download Play
- On the Gen V DS, start the relocator and follow the on-screen instructions
- Your event legendaries are now on B/W, with all event capabilities in-tact!
Now... As for how to activate the events now that your Pokémon are in Unova? I'll let you figure that out...