My friend you are only one step away!
Looks like the driver was successfully installed you only need a software application to work with it.
I don't think PC-Cam Center would work, isn't it for windows only?
At the previous site check the SPCAView & SPCATools
section. With that you can use your webcam.
Also I've read that gnomemeeting works very well, I think ubuntu must have it for sure. But be sure to check google for keywords like
or something 'cause I can't give you much of advice about the apps for a webcam.
Hope this works for you and Enjoy Linux