I think you should send us an email with your order number so that we can look into this as it seems the correct cable was not included with your kit. When did you purchase your pixhack kit from us? Our most recent batch has the correct cable, but I remember you also have an issue with the power module so I think something strange is going on! Best to send and email and we will get it all fixed for you.
Otherwise this guide will show you how to use the other cable.