There is still trouble with dependencies. To get Nova -T work try this
opkg -force-depends install enigma2-plugin-drivers-dvb-usb-dib0700 kernel-module-dvb-usb-dib0700That should install all the needed packages and after reboot usb tuner is recognized.
Thank you rimas, that did the trick! I had the same error as Raitsa reported but after reboot the sticks are now indeed recognized and working! ^^