is this defamation of character?

if you go to the craigslist "comp" forum, the thread that starts off "holy crap" is an image someone created and posted about me.
the other day someone in there also posted my full name, a picture of my wife and i at our wedding after googling my forum name and asked if it was me in the picture. im a bit frightened at what i have seen in there. but im more upset at the picture that was posted of me and want some input from my yahoo answer pals ;)
and im quite aware this happened in a forum, but, because my question is about (defamation of character) im not posting this under computers and internet, as the topic is not about the internet. im sure someone will tell me where to post and thank you ive considered it.

2011-09-17T00:22:37Z

i feel dumb, i forgot i could add a link to the picture in question. i havent been contributing lately so im a bit rusty.
http://www.freeimagehosting.net/newuploads/c6eb2.gif

Wolf2011-09-19T03:43:42Z

Favorite Answer

"trolls" love to ring other internet addicted people with no personal life up and get them all upset. seems like the troll achieved his/her goal

Jess B2011-09-17T00:24:47Z

Well were the pictures negative? It's not really defamation of character unless they're saying negative things about you. But even still if someone is posting pictures of you without your consent im pretty that's against the law too