I believe that when you are selecting a driver you only navigate to the folder, so you are seeing not the FTDI driver, but rather folder containing the FTDI drivers. Just navigate to the top level driver folder and it will find the driver file.
Ok, I did that and now I'll see if it works. Thanks. They other problem of the drivers appearing under 'Other Devices' rather than ubder Port '(USB and LPC)', wi;; this cause a problem?