Need help with setting up sound please.

I installed the Traktor DDJ T1 Edition and the Driver Software, connected it to my computer with the USB Cable and AC Adaptor. I am using Logitech Z5500 computer speakers, they are connected to my computer via Optical cable.

I can't seem to get sound to come out through headphones or speakers using the Pioneer DDJ ASIO Settings which the setup wizard configured for me.