Connecting the PS3 keypad
I had the same problem to. Here's the solution.
Go to the blue tooth settings on PS3 and have it scan for a device.
Have your keypad on "off" mode.
Hold down the blue button. While you are holding it down, turn the keypad on.
Do this for a few seconds and "wireless keypad" will pop up.
Follow the directions and enjoy.
Hope this helps.