slampatch

I tried the GTS Emulation and succeded. Now I want to know if it's possible to do the same, but with wonder cards/mystery gifts. So I can get the Oak's Letter in D/P, Yellow Forest in SS, etc, and the only way I think of right now is converting the PCD/PGT files into pkm and dragging them in sendpkmn. I don't really think that's the way, so is there any other way I can get the Mistery Gifts in my games?? Thank you beforehand.