Punching Kicking, not working....

Everything was smooth during installation except for 1 error, and that didnt mess up the game, except pressing the fire button for the basic attack, and it doesnt work, am i suppost to do something special for them?

are you talking about melee? you need to have a person targeted to attack.
first you left click on them, then you hold left click to swoosh and right click puches/kicks them

first highlight them in your crosshairs and click them so it says they are targeted, then click again keeping your crosshair in their box and you will swoosh toward them, as your swooshing hold down kick and you will knock them, sometimes across the map.