The best I've heard is 2 people in Yorkshire with a reasonable number of channels. But the experience widely reported is no it barely works if at all.
From the skydigital forums I'm aware of one person who has got a Medion enginner appointment booked. Sounds similar to you in that he has got the full set through a separate card.
Also one person says he is going to load a Linux based PVR - MythKnoppix - and see if that get the card to respond.
It record the 5 terrestrial channels it has found for us fine. But the process of connecting to the TV set and controlling the computer can be very temperamental.