That is terrible. Your photos deserve to be on the front page. And anyone who would even think to spend less than an hour+ with you is cheating himself.

This has happen to me, I even caught a person using my name once.  I find it effective to contact them and tell them you know their using your photos and ask them to take them down. Every time I called them on it, they took them down/changed their names.  Be firm but polite.