I have firmware up to a certain version from 8.24-11.0 for DES units beyond that I dont have the "latest"
So if you need to get at least that far let me know I will post a link for you to download the firmware and I have the CNUT 3.20.13 tool too..
Hit me off line..--
ComTrain Certified Tower Climber.
Wireless and IT consultant.
Proficient in Mikrotik