Foo - Help updating website software (Coppermine Photo)

I'm attempting to upgrade my Coppermind Photo Gallery (http://coppermine-gallery.net/index.php). I thought I followed the instructions.

But although the pages display, but there's now a bunch of computer gibberish on the top and bottom.

See here (http://www.brianarner.com/photogallery/index.php).

Are any of you computer types able to diagnose what's wrong?

It looks to me like there's a tag open or tag missing somewhere. It's all generated with their code though, not HTML, so it's beyond what I can effectively speak to. Try contacting them directly, more than likely it's a problem they have encountered before and should be able to fix quickly.

Looks like maybe serverside to me.

Look to me as if you resumed files you uploaded on the FTP rather than overwriting. It appended text at the end of one of the file (after the PHP close tag)

Replace with your backup (Because you made a backup before you attempted to update, right?) and restart the upgrade process.

I can't seem to find the problem. I think I'm going to reload the upgrade files. If I didn't already have the galleries and photos established, I'd just delete everything and reinstall. It would probably be quicker than this.

Replace with your backup (Because you made a backup before you attempted to update, right?) and restart the upgrade process.As I understood from the instructions, I did backup the database and a couple other files. Do I need to replace those to reload the files?

As I understood from the instructions, I did backup the database and a couple other files. Do I need to replace those to reload the files?
Yeah.