As of posting, all the image's for purchasing C.A.T. and API keys are broken on page 1, I would say that C.A.T. is now unsupported. Without the ability for users to change API's within the software it makes trading very difficult as API keys need to be updated when the exchange updates or invalidates API's as what has happened to all my 3 purchased API keys from Sampey. I cannot use the software now and there appears to be no way to update the API keys within the software. I would say that resale is going to be very difficult but don't be deterred. I enjoyed the short time I had with the software and I hope Sampey is doing well on his yacht