It seems that you are having some issues trying to set up your Slingbox Classic with your Sony SMP-M200 Media Player.
The main issue is that the Sony SMP-M200 Media Player is not included on the supported devices list. This means that we do not have the IR code that will allow you to control this device. As an alternative, I recommend you to check the following thread provided by alanrichey42, hopefully, it might help you out:
Hope this helps!