Cant open creative web camera - lost installation Cd

Plug your webcam in and visit this site
http://www.testmycam.com/Hit "Allow" in the top window and see if your webcam works in the left panel

If it does not work here, you know you have a hardware problem ( webcam, lead, USB connection etc) .
Troubleshoot by using something else in the USB port, like a printer.
Try hooking your cam up on a friends computer.

If it does work here - you have a software problem
Download this webcam diagnostic tool and run it.
http://www.download32.com/webcam-diagnostics-d35065.htmlRun through the tests using "next" to move through the pages
It always asks me to Re-boot on the first check.
Act on any information highlighted especially if software like Directx requires updating

If no problems are indicated or have been addressed, try interrogating the information in Device Manager
Expand the 'Imaging' folder in device manager, right click on the text of your webcam. Select 'Properties' and check all the information in each of the tabs.
Update your driver by right clicking the webcam text and select 'Update driver software' Use the internet when prompted

If you are still having problems - uninstall the webcam software - unplug the webcam - restart the computer and download new software from here
http://support.creative.com/Products/Products.aspx?catid=218