You can trade by having two or more people that are near you use IR trade which you can find on the screen on the bottom by pressing IR. You cannot trade globally without Wi-Fi though. Sorry!
No, you have to trade it from white version
You have to trade it from someone who has Pokemon White. It is a version exclusive pokemon, exclusive to that version.
You can't, it's a version exclusive to White. You need to get it from a trade.
No, it is a version exclusive to Pokemon White. You'll have to trade it from someone who has that version.
You Cant
You have to make a trade
You have to trade it over from a copy of Pokemon Black.
Only by trade.
You must trade with black.
Yes, it is possible to trade your UK Pokemon from Diamond into the Japanese Pokemon Black version. However, you need to beat the whole game in Pokemon Black & White to be able to trade Pokemon from the other generations.
yes on the c-gear
Vullaby is a version specific pokemon, specific to Pokemon Black. You will need to get someone to trade it to you.