I found the answer and I will add it here in case someone else is ever in search of Remote Controlling help.
On TeamViewer "remote control" you add the TeamViewer App to your Fire Tablet 7". On the device you want to take control of, you add an APP called QuickSupport by TeamViewer. Then the QuickSupport Id # goes into the TV on the other Fire Tablet, and there you go.
Thanks anyway, but I do hope this might help someone else one day

denise