I also have this tuner. Try this:
sudo modprobe -r saa7134_alsa
sudo modprobe -r saa7134
sudo modprobe saa7134 card=3
Everything should work. If you have another standart PAL - d/k, you must change two filters in the tuner.
Only now I have fixed my thuner, by changing the filters, because in my country used standart pal dk. I use programm kdetv in ubuntu. If you have more questions, you can give it in my icq - 313953710, I try to help.