Good morning,
With some assistance from Tuicemen, I was able to get the latest version of HA Bridge installed on my PiX10Hub and up and running - I installed the version with the Home Genie Helper which was great and made setup even easier (I updated the post on the Home Genie helper with some info / steps I followed for that =
http://forums.x10.com/index.php?topic=31024.0).
I then used the tab at the top in HA Bridge for "My Echo", signed into the device and used the Discover Devices from there (verbally asking Alexa to Discover Devices didn't find any) and all of my Home Genie Devices are there.
I then tested by asking Alex to Turn On one of the lights, and it worked. I did get the "Device Not Responding" reply from Alex but it did work (and the light turned on, and then off when I asked to turn it off again).
So looks like I am back up and running with Alexa. Will see how things shake out over the next few days.
Thanks