Colorsource 20 Software version library version 12.0.1

We have a Colorsource 20 as in title. We have just purchased some new Prolight LEDJ Performer 18 quad zooms. They are not listed in the library. I have tried unsuccessfully many times to update the firmware (with new latest library as they are now listed). I have as per instructions downloaded on to a mem stick the ColorSource Console Software v1.1.1  when I insert mem stick into console and got to setup/files/advanced/updatefirmware/ says No firmware found ensure colorsource.fw is in the root directory



please help!!