Is a fictitious conversation using real people Libel?

[OnlineArtist]

Hello,

I am a well known content developer for software packages. I live in MASS.

On a community site with an art gallery someone posted an image and text outlining a fictitious and unflattering phone conversation between me and a fictional salesman.

They used my name and the image has been viewed by hundred of people who know who I am and know of my products. The salesman in the post referes to my products as disfunctional and as "crap". And the text suggests that I understand his arguements. Is this Libel?

The owners of the site will not porpovide me with the authors identity and the author will not remove my name from the post. The company that owns the community board and gallery is in TENN.

Can I stop this?

 

[OnlineArtist]

The author claims that this is a satire because I am famous and that he loves my work. But it does not say this in the image or accompanying text.

 

[HomeGuru]

Are you really famous?