OK, boys- she runs! Hey, I appreciate everyone's help and persistence. It could have been any one of those suggestions that worked- you never know, as each case is different.
Here's something to put in your notes. This guy on the FaceBook TuneECU page ended up having the answer....
Brett Roberts
"Ok. Press the connect button and wait. After a while it will pop up and say “do you want to do a recovery” click NO.
Press connect again. Again press No. repeat until it pops up with the “recovery box that also has a Full Programming button”. Press the button “Full programming” and ok.
Should be good after that loads in."
Took about 60 minutes and then..... success!