Hurrah! All up and running again. I used PhoenixSuit 1.8 on my daughters laptop (Windows XP). I had downloaded a number of images to try, including the 3 Android images on Cubieboard.org. The only one I could get to work was the one that caused the problem in the first place! Android TV 2.3.
I tried Livesuit 1.11 and it gave me exclaimation mark errors. I then tried Phoenixsuit but had to uninstall the drivers installed by Livesuit.
PhoenixSuit showed that there was no device attached but if you load up the image and then put the Cubieboard into FEL mode and connected the USB cable, PhoenixSuit starts to flash.
You can release the FEL switch as soon as you see the network cable lights flash.
I now wonder why the other images didn't work? especially the ones downloaded from Cubieboard.org. They were not SD images as far as I know and were for the Cubieboard. Except for a couple of Debian images.
I can imagine that one or two may have been corrupted. I think that I may have corrupted them by using the wrong type of unzipper (I used 7Zip which seemed to work O.K. but you never know.).
Anyway, I am just going to enjoy it as it is for the moment and leave trying the other distros for a while lol.
I hope my exploits may help others out who find themselves with a supposed bricked Cubieboard.
I am also wondering if there is a way of getting the Cubieboard to automatically flash itself from an image in the SD port like Android tablets do?
Many thanks for your replies and helpful hints.