Denon AVR-2807 Receiver "plug usb turntable computer" Questions

USB cable to my turntable and then to my computer, but I don't understand exactly where and how to connect the cable for audio output. The phono plug connectors on the cable provided do NOT fit in ANY

...USB port. Problem is I don't know where to plug the red & white RCA-type connectors to the Denon! The xitel instructions say to connect to audio outputs that are usually labeled Line Out, Aux Out, ...

...USB turntable system. ATT021A. I have plugged it into the usb port and the turnyable is powered up with a record on and I can hear it working from the needle but nothing comes out of my computers ...