it is hard to tell where u r sticking , and i do know it is hard also to install qubes + whonix. and qubes doesnt give the opportunity of how to install things (screenshots) with an easy method. shifting 30 or 50 screenshots is really painful atm. so u either start discover things ursself by trying this and that or i dunno how to help in here. u can use plain debian + kvm + whonix atm and wait until i figure out how to easy things with installation of Whonix inside Qubes.