BigPicture Netcam Drivers Needed

I am looking for the drivers for a US Robotics BigPicture netcam. It has a 3COM video capture card that came with the camera. There is no model number of the card although it does have a Bt848KPF Video Encoder on it. I have looked at the US Robotics site and the 3COM site. I have looked at all the usual driver sites as well. I need the exact URL of where I can get this driver. I will award points to a successful install of a referred driver.