I need some help with a few things. I have Shaun white for PC and just have two questions

1-With focus, its tap 3(i think its A on Xbox) then hold the other butto1(Y on XBox) Is that rights, and where do i do it?

2-The more important one: when i want to play multiplayer, it says to log in. So i used this username(Miguelito1234, the whole reason why i registered) and my password, and every time it says like "Invalid CD key for the internet" Can anyone help me with this? I wanna play the game with other people...