WD3200KSRTL not recognized by windows xp sp3

WD Internal Drives Desktop & Mobile Drives
2

Can you see the USB enclosure with Microsoft’s UVCView utility?

http://www.users.on.net/~fzabkar/USB_IDs/UVCView.x86.exe

Did you partition and format your drive?

How to use Disk Management to configure basic disks in Windows XP:
http://support.microsoft.com/kb/309000