Driver windows 7 for labtec webcam
http://www.labtec.com/index.cfm/service/listing/EUR/EN,crid=68,crid2=1764
Download the nearest driver to your operating system from the url above, if you are using 64bit use vista 64bit and same as 32bit
When you first install the driver it will give you an error message, "you cannot use the current version, dont worry the setup files get extracted to a directory:
C:\Program Files (x86)\Labtec\WebCamWebInstall\Drivers\x64 or similar.
Open device manager by entering the properties of my computer find the webcam in the list it should have an exclamation mark on it, right click on it and update driver, locate the driver from a file directory as above, it has 2 sub directories, you driver is in WIM64 or 32 depending on what your system is, and press ok, it should find the driver and install it for you.
I hope this helps and let me know how you get on.