i jsut bought an action replay dsi?

ok so i jsut bought an action replay dsi and i cant use pokesav for any of my pokemon games... i have tried every whitch away but i cant do it at all... i've even looked at the code but when i press L and R nothign happens... my pokemon dont go into my party... wtf is going on? it gives eme errors when i try to upload from an sd card idk what i gotta do... i've tried pearl, i've tried plat, and heart gold... nothign works... this is irratating.,..