First and foremost, I should say that I discourage the use of Action Replay. But it's your choice to use it or not, so I'll explain.
Codes can either be downloaded onto the AR device by computer via USB or manually-entered, the latter being quite cumbersome. You can find AR codes all over the internet.
you know what? I'm sorry what i said on top. i was a n00b back then. no. i don't have it. but what action replay are you using? I have the DSi/DS action replay.
“If you want to be fancy, hold your pinky finger like this. The higher you hold it, the fancier you are.â€