Sorry, I said WinTV-HVR-1800, it's actually the WinTV-HVR-1600 TV Tuner Windows 98 Driver, that I am looking for.
I took a picture of the card to help us look for the correct drivers.
It looks like it's a PCI card, not a PCI-E card.
Sorry, that's it's blurry, I don't think I have a good camera on my Tablet.