Series 2 Humax DRT400 and Motorola cable box

My cable company is forcing me to use an HD DTA box made by Evolution. I cant get the TIVO to change channels and have gone through guided setup and set up the IR blaster. I called my cable company and they said my TIVO would have to accept a cable card (it doesn't) and be able to use a digital tuning adapter. I called TIVO ---- what a joke they don't have a clue.



I have a Motorola DCH3200 cable box on my other TV. Can I use this Motorola box with my TIVO? If so, how?