Sony DCR-HC24 firewire won't upload to pc?

I am using windows xp, sony Mini DV DCR-HC24, and Pinnacle studio 11,and the window that comes up says Video device not found -pinnacle studio plus is unable to connect to your video device. people have said to download a driver from sony but cannot find a driver my Video camera is not showing up on my pc in Control Panel/System/Hardware/Device manager/imaging device.........apparently Firewire doesn't need a driver?the Lead is showing in the Device Manager! can anyone help me as I cannot get it to work and no one else seems to know!.thank you in anticipation .