Thank you for your reply.
When I log into Power Gallery as adminstrator, I can add images.
I can carry out tasks in Manage Images.
However I remain in 'currently editing' message top right of screen.
I can choose design and apply. Also find the url that applies in 'Add to Site'
This is indicated previously by the link.
However indeed, I cannot display the images in Power Gallery in functioning gallery format
(when in admin section of Power Gallery).
Hope this makes sense.
With best regards