Theme uploaded wrong or code wrong?

[debraguk]

So do I have an error with coding or have I just uploaded everything wrong?

Directory - /gallery/themes/DanicaGallery

Files - style.css | template.html | theme.php | Thumbs.db | bg.jpg | header.jpg

The zip file has been attached.

When I change the theme to this one in coppermine, the images don't show, it is just blank.

[debraguk]

So by using firebug I have found that the link to the style sheet was wrong, so have corrected it and have it looking correct so far. Where are these actual html files found?

Another is

[Αndré]

Where are these actual html files found?

Which HTML files do you mean? The Coppermine pages are created dynamically, so there are no HTML files like on static pages.