Thank you for your reply. I was fully aware that the images and film would be used in conjunction with an adult paysite. However I was very clear to my "associate" that I wanted certain content only accessed by paying members and to have the ability to approve what images were used and how they were represented. I was also very clear (not on paper, this was all verbal) that I would not release the images to the distribution company until we had worked out compensation, and how freely that company could link the material through to any secondary sites for backlinking, thereby losing any shred of control over presentation. She abandoned the project (basically flaked out) and we lost touch, she then moved out of state. She then entered into some sort of agreement with the distribution company with copies of all the material we had created, leaving me not only out of the loop but not notified at all, and has apparently now turned over everything we produced together carte blanche. Some of the images were taken by me on her camera and I did a huge amount of work editing/post production work on them on my computer. They were also shot on equipment and at a location owned by another individual who is also featured in the material completely without knowledge or compensation and is also wondering about legal recourse, this being her ex who she was living with at the time). I hope that none of these gory details are offensive to anyone. Since there are a few very important things I am unclear about (ie the wording of a document I can't be sure I didn't sign, "slaps forehead") I'm trying to give as much context as I can.
Having done some reading since I posted my question I'm very discouraged. It seems that considering how broad many model release/age verification documents are I may be out of luck. This was my first time working with any kind of "release" in a modeling context. She had all the contact with the company she was producing content for and my understanding at the time was that as soon as we had finished creating the content we would negotiate with the company for usage and compensation. I am the first to admit that I am responsible for my own failure to research my rights and the legal issues involved.

I am also asking for legal advice from folks here without having certain important details, like a copy of what I "may" have signed. I have a clear memory of talk about paperwork, and seeing something, (very brief) printed out. Under these circumstances I realize that the input I can receive is quite limited. So let me narrow my query:
(1.) Do I have a right to demand a copy of all paperwork the initial site has for me as a model? And yes, I am aware that I have broken the cardinal rule of never signing anything without examining it and obtaining a copy. I'm not expecting to be able to have the images removed from the many places they are now appearing.
(2.) One thing I am sure about is that I did not sign any document specifying the compensation for the material, and have not seen a dime from anything related to the images, which, considering the site's traffic stats, is in the tens of thousands. Do I have a case for challenging the legality of a document that is so one-sided (in retrospect) that no reasonable person would have agreed to it if they had known it's implications? The implication being that:
"we can post 100's of free hardcore images of you all over the internet through dozens of sites and hundreds of feeder links, accompanied by statements you have not approved and that could certainly be considered "defaming", and not only keep them up without your permission but never share a cent of the substantial profit."
Again, I know you guys get questions from people all the time with only partial information on which to base your feedback. I'm thankful for any input, however general. I also realize that "fairness" often has little relevance in the legal arena.
So yeah, I'm definitely going to be paying for this mistake the rest of my life. I'm just wondering about my options for damage control and if I can expect any sort of compensation at the very least.