I did download the tts engine from that post. My trouble was that when I installed it on the device, it said it was installed but no option to open it.
When I then went to my device homescreen, the app did not show to press and run.
If I go to apps in settings it was on the list but no option to run.
That's why I downloaded the vocalised from the playstore.
It seems to be working now Albeit it has a English US files in the vocalizer ex2 folder on the root and not a UK version. Not sure of that will make a difference to the operation.
Thanks