Just open up paint or something and draw a box the color you want the paddles and then just load it as a bitmap. That way you can use collisions and if you detect collision then you can have the ball bounce off but you'll have to make the ball a bitmap to. To make boundries you could just use the commands to draw another box but when I made Pong I just also used another Bitmap for the lines at the top and bottom it's much easier For collision purposes.
position object myFoot,object position x(yourFace),object position y(yourFace),object position z(yourFace)