I'm not sure what I did wrong, but before I knew it I'd erased all the photo's on my camera's SD card before the files were copied to my machine. After several seconds of swearing, and several minutes of panic, I realized there must be an undelete app. I found a free one, and it worked like a charm.
The undelete app is called Recuva, it's free, and it worked like a charm to recover my erased files. A tip for you, when installing this app be sure to unclick "install bloatware" which is bundled with this recovery tool.