HP Probook 4430s Webcam

Hello,
I got a new HP Probook 4430s and had to format it to install OS with required patch. I am using Windows 7. It came with Arcsoft Webcam champion pre-installed. Now after formatting, I am unable to find it and the CD containing its drivers doesnt seem to have it. I am unable to find it on the HP site as well. I noticed that the drivers CD was same for compaq and Probook so I downloaded the Webcam champion driver for compaq. It installed correctly but now its unable to find the Webcam. It gives me an error saying webcam is either not installed or being used by another application. Please HELP!!