Google this:
PK-7MAR
FIRST LINK SHOWN is for this webpage:
http://www.a4tech.com/en/product2.as...89&MNO=PK-7MAR
Scroll down page and find section titled:
"Download driver for pc"
Click on it; this new page opens:
http://www.a4tech.com/en/download3.asp?ID=226
COPY THE INSTRUCTIONS shown:
"How to download and install the driver properly:"
1.) Press Download button to download the desired driver.
2.) Save it somewhere where you will remember after download. We recommend that you save it on your desktop, so it will be easy to find.
3.) pull out Pc Camera form your computer.
4.) open the downloaded file.
5.) Follow the on-screen instructions.
6.) When it's successfully installed, please restart your computer.
7.) After you have restarted the computer, connect Pc Camera to USB on your computer, Windows system prompt to find hardware and automatic install the corresponding driver successful.
OK, so the spelling and usage needs some work, but it seems pretty simple to me... Direct driver download page here:
http://www.a4tech.com/en/driver/CameraH.zip
Lesson to be learned: Google is your friend...