Fired up a laptop with 3G stick. About 15 mins later I have all of the updates done and it recognises the Xbee - phew! I will have a go at copying all the update files to the other Windows boxes.
Having only started with Xbee today, I have no idea why there are so many versions. I always thought they were a simple device. All this talk of firmware, etc.
Now comes the fun part of working out how to set up a "master" device and several slave devices. I think I need one coordinator node and the rest set as end devices?
What I'd like to do is have a PC talk via the master and broadcast commands to the slaves. Each Xbee enabled (formerly RS485) slave has it's own address so I'm hoping the links will all be transparent and that part will work without code changes.