Toshiba Satellite T230 Webcam Driver

Toshiba Releases Satellite T and T Ultra Slim Notebooks port, b/g/n, Bluetooth EDR, VGA webcam, and multi-card reader. I have got a built in web cam on my toshiba satellite lap top can someone explain to me in detail what I need to activate it. Have tried everything  Missing: T Part number: PST4AED00XEN. Satellite TJ. Windows® 7 Home Premium bit (pre-installed, Toshiba-HDD recovery). Intel® Core™ iUM.