Rob? Have you by chance looked your perps up on the national sex offender registry? http://www.nsopr.gov/
IF they have offended you could let the police or social services departments in areas that they now reside in know what happened to you. Just a thought, hell I don't know. There are legal issues to consider before doing such things though.
Do you have a lawyer? Were any other boys victimized by your perps? Could you contact them? If you can corroborate your stories and point to the same perps, you could file a civil suit against them, just like they did to Micheal Jackson.
Personally, I would like to see you do this.
Thinking about this further however, the first stumbling block that I see is that you could NOT sue them for damages since they were minors at the time.