The problem is that the meta packages for easy driver installation for boxes with 2.6.18 kernels (Dreambox) have incorrect dependencies. It could either be fixed automatically like in ETxx00 series, or manually.
For af9015, install the following:
firmware-dvb-fe-af9013
firmware-dvb-usb-af9015
v4l-dvb-module-af9013
v4l-dvb-module-dvb-pll
v4l-dvb-module-dvb-usb
v4l-dvb-module-dvb-usb-af9015
v4l-dvb-module-mc44s803
v4l-dvb-module-mt2060
v4l-dvb-module-mxl5005s
v4l-dvb-module-mxl5007t
v4l-dvb-module-qt1010
v4l-dvb-module-tda18218
v4l-dvb-module-tda18271
for Siano based install the following:
firmware-dvb-siano
v4l-dvb-module-smsdvb
v4l-dvb-module-smsmdtv
v4l-dvb-module-smsusb
Thanks -- Now I can use my Avermedia Red HD+ (A850T) with my DM800HD ...