It's been a while , but I thought
ProgDVB was supposed to support it.
Don't think I ever got it to work... probably my fault.
I did get
MyTheatre to work pretty well. But only after lots of blood sweat 'n tears.
Later (a year ago) I went looking for something better, and my first choice,
DVBdream didn't do the Twinhan USB.
Well, it might have handled the "A" model, with BDA drivers, but that's not what I had.
So, I moved on to a PCI card...
...and eventually a stand alone FTA receiver.
edit:
Oh, here is an
old discussion of such things. Give it a read.