"Moves" as they exist in the game don't exist in PMDTA. Instead, when you attack a target, you choose whether to use Attack or Special Attack, and choose which of your types to use (if you have more than one). Then you multiply your attack stat by the modifiers applied to it (if the attack is super effective or you have only the one type, etc) and subtract the target's Defense or Special Defense stat from it (Minimum damage dealt is 1).
Hm, now that I write it out it seems very complicated, but it flowed pretty well in the playtests.