Okay, I give up! I've spent an hour now trying dozens of different strategies to get C Photo:Hayford Peirce to show up on the image I downloaded months ago of Image:Colin Wilcox.jpg for the article Collin Wilcox (note the two different spellings of Collin -- one "l" for the image, two for the article, my bad). No matter *what* I do, I can't make it show up.
Well, I know nothing (yet :-) of how photos work, but why don't I help you (and in the process inform myself as to how this works).
I *know* that there should be a template somewhere that merely has {{CC-photo|Hayford Peirce}} as the text in it, and I have created an article called Template/Colin Wilcox.jpg but that doesn't work. As a test, I uploaded a new picture called Lobsters using the wonderful Wizard. At some point I'm directed to a place where I change the boilerplate to read {{CC-photo|Hayford Peirce}} et voila! it's done.
Well, [[Template/Colin Wilcox.jpg]] doesn't create a template, but rather a subpage ("Colin Wilcox.jpg") of the page "Template" in the main article 'namespace' (think of namespaces as being roughly equivalent to a bookcase, with individual 'pages' being equivalent to individual books in the bookcase - again, sorry if you already understood that). Templates are (basically) all in the "Template" namespace, i.e. have page-names of the form "[[Template
:<mumble>]]" - note the ":" to indicate that the word before it is a namespace identifier.
Looking in your edit history, that template for "Lobster"'s copyright notice was created at "[[Template:Lobsters.jpg/credit]]", so I would assume that the copyright notice template for [[Image:Colin Wilcox.jpg]] is at [[Template:Colin Wilcox.jpg/credit]]. The thing is that
that page already exists, and appears to have been filled in correctly.
What exactly is the problem you're seeing that you're trying to fix? Because when I go to
the Colin Wilcox image I do see your copyright notice. Is there some place that's using it where the notice doesn't show up?
But why, oh why, is it so impenetrable a process for even an experienced user like me to attach this simple statement to an existing file?
A.) Surely I can't be the only person to have experienced this difficulty.
B.) Surely there ought to be an *easily accessible* means of doing it. One that even those of the meanest intellect can:
Well, there's still a lot of jury-rigged stuff, because the project is just getting started; and that also means that the documentation/etc probably isn't what it could be. (I've been fixing mistakes in the documentation about how metadata works for the last two days...)
But hopefully over time things will improve. In the meantime, rather than banging your head on the wall for ever in cases like this (and your multiple-subpage-move), drop a quick line, and see if one of the computer geeks here can help you! That's what we're here for! :-)