Unsuccessful.
I got the code from Aeon's site and unzipped it into my Virtual PC then ran it. It found the Aeon ZStick. It also loaded up the full list of devices. Another way of saying, OK, that worked.
The instructions say to include the target device, because it presumes it's on a completely unique and different Home Network #. In my case, it isn't.. but I did the include anyway and, no surprise it found the existing.
So everything is good to this point. Next instruction is to use the Firmware page to transfer the code. And that fails.
I'll send a message to Chris at Aeon Labs and see if he has advice about running it this way.
UPDATE: Aeon Labs Support Ticket created.