Hittest for pong game

ok, i have a pong game and have got the bats working but i need the ball 2 do 2 things

a) i need the ball to just bounce around the screen randomly, and make a speedthing on it cause i cant get 1 to work

b) i need the hittest on the ball so it hits the paddles and bounces off them

im not sure if anyone needs this information but i have the inctance names, bat1 and bat2. and thats about it.