I too have an Aeon energy monitor. Not sure how to check to see what firmware the monitor is using, or how to update it, or where to get an update from.... My Vera is running firmware version 1.1.1047.
I've got the transmitter powered via a mini? usb power supply, and the Vera about 3 feet away. The device shows up as 4 nodes: GenericIO appears to be the power measured, and has a little battery icon on the web display, that's 'measuring' at 22%. The GenericIO noe ID is 13. There are three other nodes, e1, e2, and e3. A 'snapshot' of the measurements is:
1352, 5, 666, 740. The defaults for e1, e2, and e2 is 'blank', i.e. poll every 30 (I think) seconds). It doesn't seem like manually polling works... I get 'Node never responded' almost all the time. Does anyone have ANY specs on how this is supposed to work? Or what the data that's returned looks like?