Can you share how you used VMware "Tools" to expand the virtual HD, like detailed steps to do so? Have you seen in VM settings view, the disk size has been expanded to 200GB? Have you checked in the Windows guest (e.g., in control panel -> administrative tools -> computer management -> disk management), what about the disk layout, disk spaces, have you seen any change inside Windows?
Here are the links about resizing/expanding virtual disk through VM settings GUI, VMware KBs: VMware Knowledge Base and VMware Knowledge Base (Fusion). Follow the KBs, it should work.