Help needed for old Thumbnail Gallery

I’m trying to use the old Thumbnail Gallery on my colleague’s website as I need to publish new gallery. I can’t find any way of doing this - this is not user-friendly interface. I have imported pictures but there’s no information how to publish them/the gallery on the existing page.
Please advise how to do that. Great thanks in advance.


Contact with your purchase item author hope they will help you out from your issue.


Thanks for response. Fortunately in the meantime I have understood how it works and I have added that gallery.