I don’t think you’re being dim, unless we both are; quite possible in my case I admit.
As a fellow plain forum user, I struggle to get any sense out of your gallery as a viewer from the link you provided;
I can see you appear to have one gallery of two photos, for which I can see thumbnails, but when I click on either, I get a black bar across the screen
It might be worth reporting this post as an example for the developers.
I’ll not do so, as they are likely to get brassed off with me reporting something else.
Not only this problem, if you’re going to report.
If I access Gallery from the front page of the site, yours does show in a total of 23, apparently with 12 on each page.
Some work OK unlike your one.
Page two for the remaining 11 galleries shows 404 error so I can’t see them
Individual Gallery titles are all shown without any reference to the author/photographer until you open them.
First Gallery by Windy shows Flash Steam Project, but doesn’t mention his name until you open a photo.
Russell has at least 3 galleries, but searching for Windy or Russell shows nothing found.
Searching for “clock” works OK, but no way to search for the author.
https://*****www.model-engineer.co.uk/gallery/
Takes you to the Gallery front page of the first 12 Galleries OK
https://*****www.model-engineer.co.uk/gallery/page/1/
Takes to same place but with 404 error – page not found at the bottom
Press Next for the final 11 Galleries changes the URL to Page 2;
https://*****www.model-engineer.co.uk/gallery/page/2/
Takes to same place but with 404 error – page not found at the bottom, just the first 12 shown again
Stars added to try and break the hyperlink, so don’t click on them.
Done so that the URL is visible in the text of the post.
I can’t find a way to stop the forum turning it into a hyperlink, even though it’s invalid.
This below is the first line without the stars; should go to the front page
https://www.model-engineer.co.uk/gallery
Bill