Hello and thank you for your question. I look forward to assisting you today. Are you using the special breakout cable that came with the camera?
Okay. So the problem is you have no connection to match on the computer end?
I think you could easily resolve the problem by using an adapter for your camera rather than the breakout box in your attachment. Check this LINK. This would plug in directly to the audio in port on the back of your computer.
Your only charge is the deposit you have already paid. The only option I can see for this to work, would be a video tuner device similar to a TV tuner that would need to be connected to your PC. Not real expensive, but an addition that will be needed to allow the camera to input the audio/video signal directly into the computer.
Can you send me a photo of that device as well please?