It’s working, thanks!
A couple of notes on the upgrade process:
I installed the lib first and then the app - used the process in the manual for the most part - used DfuSE Demo 3.0.1 with Win7 x64. Also the program barked a warning that the device was in dfu mode so it could not verify etc, I clicked ok (but only after I downloaded the existing dfu form the DSO first to have a backup). One feature I was hoping for was to loose the waveform at startup, not big deal though - really liking this thing.