This definately DOES NOT belong in the Tech help.
However, have you already obtained the National Dex in Emerald?
I don't think that's going to help now that it's already posted....
Anyways, since it's Mew and Deoxys, I suspect you cheated to get them (if you did, you obviously used basic cheat codes, thus you couldn't avoid the game's filters)
Well, for the most part, cheated Deoxys and Mew cannot be traded to FireRed, LeafGreen, or Emerald (they CAN trade to Ruby and Sapphire, seeing as they can trade sharks to one another). That's because the two need an obedience bit or the game will not allow you to use them outside the respective game.
If it's not that, then get the National Pokedex. rofl
