No class action because there's not going to be a group of you willing to step up and sue them.
Have you copyrighted the photos? If not, no big deal, you just have to go ahead and register them.
Of course, you'll need an affidavit stating your name and all of your personal information stating that it is you in the photos. Then you'll need to hire an attorney to track down the site owner (no one lists a site address so I couldn't tell you if it's privately registered or even if its registered in the US). If they are registered privately in the US, since you don't have a registered copyright, you'll have to contact law enforcement and explain all of the details to them so they can approach the private registration company. That may or may not clear everything up (depends on the host in addition to the registration company).
If they are not in the US, you're simply shit out of luck. The only reason people go offshore is to register in countries that could give two shits about copyright/trademark law.
So, I think you should all group together, pay an attorney to start all the legal action (probably a retainer of 10-20K to start, with costs getting out of control quickly). File the affidavits, copyright the photos through the US Copyright office, and go after them.
That said... since we all know that's not going to happen... keep writing e-mails and hoping they choose to do something about it (not likely). ANYTHING you put on the internet is there forever, regardless of what you think.
Examples:
http://web.archive.org/web/200111302...tp://aspd.net/ (ASPD from 11/30/2001)
http://web.archive.org/web/199911271.../www.aspd.net/ (ASPD from 11/27/1999)
http://web.archive.org/web/200801121.../risquebb.com/ (Risque BB's lineup from 01/12/2008 - pics aren't in here, but those are easy enough to get as well).
Conclusion:
Be extremely careful what you put out there about yourself because you have ZERO control over it once posted.
Image control is an industry online as the cost of "putting the genie back in the bottle" is prohibitive for a person with nothing to hide, much less one who has reason to avoid outing themselves.