I was going through this problem yesterday, actually.
You'll need to download drivers from
here actually, then install the drivers from Device Manager. Make sure WinRAR's installed so you can extract the folder.
If your experience is like mine, you'll get a "Calling Syntek Mini-Driver function "Get" error", and a similar one will appear if you attempt to change the settings in the Image tab. However, it is possible to change the option from NTSC to PAL by going from "NTSC_M" in the drop-down box under Video Decoder to "PAL_B". This depends on your region though.
Best of luck and happy capturing!