Cannot get sound exchanged through r16 and cubase

I have a windows 8 machine and as far as i know i have got all the drivers to work and the all the VST connections are correct. I cannot get a reading that any sound is coming into cubase through my r16 and i cannot play back imported files from cubase through my r16. I’m fairly confident that i have done all the necessary changes in the device menu to get this rig running, but i can’t get everything to work. Any help at all is appreciated.