Copyright Violations on Free Software?

Marek Futrega asks: "What can independent developers do to protect their copyrights to free (not GPL) software. I've found my game with a changed name, logo, and copyright notice on two web sites (http://www.kita-kits.com/iskrabol and http://www.surfshop.net.ph/games/skrabble/) I don't think I can sue the company or something -- they are half a world away from me and I have no funds. Is bad press the only thing I can do for them?"