Contolling motors using a motor driver

I have a motor driver which I bought from ROBOKITS.I cant figure out the connection between arduino uno and the driver.It would be of great if someone can help me with the connection.The driver I have with me is :
http://robokits.co.in/shop/index.php?main_page=product_info&products_id=176

Arduino to Driver mapping:

GND --> GND
VCC --> VCC

Any 2 digital pins (say Digital 5 and 6)--> M11 and M12 (controls motor1 direction)
Any 2 digital pins (say digital 3 and 4)--> M21 and M22(control motor2 direction)

Any 2 PWM pins -->PWM1 and PWM2 (to control speed of motor1 and motor2 independently)