Nobody over GlobalTradeStation can trade you that, since Arceus can't yet be captured legally in Platinum/ Diamond/ Pearl. You can capture Arceus in HeartGold/ SoulSilver though, so either trade with someone in Japan or wait until the American release.
no
me
I'm assuming you mean Arceus. Arceus was an event only Pokemon so unless you can find someone who can trade you one, it is unobtainable.
no
platinum get arceus this year from a Nintendo event, get someone to trade you one from a platinum game
You'll need to trade for it from Pokemon Diamond, Pearl, or Platinum.
Either cheat for it or trade with a friend.
you need to trade it over from Pokemon diamond/pearl/platinum.
I dont think you can. You will have to trade it from a Pokemon Diamond/ Pearl/ Platinum game which has Arceus.
pokemon events, or trade the event pokemon from a diamond/pearl/platinum game.
You'll need to trade it over from Pokemon Diamond, Pearl, or Platinum.
Well. You can't get arceus in HeartGold only in Platinum you can, but you could trade with a friend who has Pokemon Platinum.