Mostly you need pkhex and ram2sav (pls see info about it in its own topic).
1) On your game, go near the door of a pokemon center (don't go in). Then save the game.
Extract the ramsav via activating rsavout.
2) In the computer, use pkhex to open your ramsav
3) Look for the button wondercard.
4) Insert the wondercard file you downloaded
5) Save, export the new ramsav.
6) Go to ORAS game, activate rsavin. Wait to crash
7) Talk to the delivery girl.
Edit: blush(*^^*) thnks!