I tried installing this mod with one of my themes yesterday but it produced no result whatsoever, no sign of it, I'm afriad.
I edited the files which were mentioned in the instructions, common files and subsilver theme files, uploaded them, together with the new files provided. I cleared and refreshed the cache, but nothing.
The theme I tried it with was Darkfantasy, a subsilver theme. It should work with that, shouldn't it? All the edits were found in the right files, so I don't see what the problem would've have been.
Perhaps I have left something obvious undone. Any ideas?
Edit: I've tested it with the subsilver theme. It works, but no luck with darkFantazy, despite being a subsilver based theme.