I did have a look at Logitechs site but when I put in my cams details it said it wouldn't run on Vista.
However as it is USB I just plugged it into my PC which recognised it immediately and found drivers for it.
I didn't, however, try the software as it wasn't listed for Vista but I'll try some later software for a different cam and see what happens!
I did find FWINK on the net, which is free and seemed to work except that everytime it takes a picture it overwrites the previous one!! I have written to the writer of this open source prog to see if he has any advice.