No driver for USB camera

[sa]

I have reformatted my hard disk and now I face problem: My system,
(winXP SP2) cannot recognize my webcam.

Re: this webcam I lost drivers and I cannot figure out which brand it
is since it was a gift the ebay Seller gave to me for free when I
bought my Compaq Laptop.

It is a long neck small WebCam, suitable for laptops, and looks like:
Ezonics CobraCam Webcam
see picture here:
http://www.shopping.com/xPP-Web_Cameras-webcam-5375_usb~PG-3~V-

but Ezonics drivers (downloaded from their site) do not work:

I have tried similar brand WebCams, like:
- IOGear GCA210U WebCam
- Micro IC70C WebCam
- SIIG CE-UMCP12
But I failed.

Can someone suggest a General Purpose USB Webcam Driver so I can start
using my webcam?

Thanks