What were you using to stream videos previously? USB or Firewire? If you used Fireware, it should be very easy to find some sort of alternative software. Shouldn't be too hard with USB either, assuming you have the drivers and it streams similarly to a capture card... I've personally never tried to capture using USB from my camcorder.
Also, have you search Sony? They probably wouldn't have their video capturing/editing software available, but you never know...