How can I install my webcam on my mac without the cd?

I have lost the install disk to my webcam. I am trying to install it on my iBook. It's a Logitek. Ive looked up the model number and it is compatible with mac's, but I can't get a download or anything from the logitech site. It stinks, there help site sucks!!

Go to the Logitech link below, choose the model webcam you have and follow the llinks. They have download links for the software and you can select your operating system. If yours isn't listed on Logitech's web site, follow the link to contact Logitech support. It works like most other support web sites.

http://www.logitech.com/en-us/support-downloads/downloads/webcams