I have a shop on cafepress.com I am a fine and graphic artist. ALL the designs in my shop were created by me.
Doing a search today to see how one of my newest is ranking in their market place, low and behold I find the EXACT same image in another shop. Not only that, they are claiming that is their logo! (I do a bit of logo work. It is very expensive. I would never just give it away.)
I'll hold off on showing the exact image (thus promoting my thief.) until I get some expert asking to see. But trust me, this is nothing that would just randomly happen. No way!
I do have the original working files.
I did already write to CP asking for their help but aside from removing the image and warning the thief, I seriously doubt they will do much else.
I DO have screen shots of the store, and I did a whois search of the domain name they are using with my design as their logo. I have the name of who it's registered to at least.
Seriously, if there is legal action possible, I'm VERY interested!