I'm getting the following error:
"C:/Program Files (x86)/Soulsby Synthesizers/EasyUploader//avrdude" -c arduino -p m328p -C "C:/Program Files (x86)/Soulsby Synthesizers/EasyUploader/avrdude.conf" -P \\.\COM3 -U flash:w:"C:/Program Files (x86)/Soulsby Synthesizers/EasyUploader/Atmegadrum_1_2_1_606nglitch.hex":i
got it working as there was a problem with avrdud.exe as a libusb0.dll file was missing. :D
Cool - sounds like the FTDI wasn't 100% happy. Sometimes needs a restart after installation