Game version doesn't matter at all, as long as it's the same Gen as the other person, you're good to trade.
Okay, now that you got your Pal Pad, open it and click register Friend Code (It might not be the exact phrasing but something similar) and put my name and my friend code. My friend code is 3139 5301 2909. Also to check your Friend Code it's the 2nd option besides Registering someone else's Friend Code.
And I'm glad to help :)