In most cases no USB drivers are needed. Just attach the camera to a USB port and you should be able to see it as a drive and download the image and movie files.
What problem are you having? What does the computer do when you attach the camera to the USB port?
EDIT - whoops, my mistake, that's a tape device. Hang on...
Here's a strong suggestion to use FireWire instead: http://forum.videohelp.com/threads/302855-Transferring-video-from-Sony-DCR-TRV-285E-to-PC-need-dv-sample
Per the manual ( http://pdf.crse.com/manuals/2515260141.pdf
) , the software is only guaranteed to work with Windows versions up to XP, but you can always run it in XP mode or, as a last resort, in an XP VM. The software should have been on a CD that came with the camera, but let's look for it online. Sorry, can't find it.