here had the same problem here is my solution
1.Power on your Windows virtual machine.
2.Check that VMware Tools are installed in the virtual machine.
3.Choose Virtual Machine>USB>Connect Apple Built-in iSight from the Virtual Machine menu.
4.Windows takes you through the Found New Hardware wizard. When prompted for drivers, use the leopard disk for driver.
5.When the wizard finishes, your iSight camera is ready to use in the virtual machine.