I need driver for Logitech Quickcam chat on Mandriva 2007.
Where can I find it (get it)?

I have never used Mandriva but found these:

You could try executing following command as root in console:
urpmi dkms-spca5xx

If it fails:

gspcav1 - "Generic Softwares Package for Camera Adapters".
You need to compile it from sources.

or install rpm from:
RPM resource dkms-spca5xx.

(Source - Google Translated from French to English)