Well dear, I got same Intel webcam that is, cs330. It is working fine with windows 7. Simply attach webcam to any available USB port, of course windows wouldn't install it automatically. Now download windows XP driver for the cam. Download link
Double click the downloaded driver file. It will extract into windows temp folder. Open device manager, choose "Browse my computer for driver software" option. Browse for temp folder in C drive that is, C:\temp\cs330_XP and click next that's all. Enjoy your antique Intel CS330 webcam on windows 7.