The largest faith-based conversion therapy program in the country is Love in Action, which is located in Memphis, Tenn. Eight years ago "20/20" was invited to meet nine participants in the program who were attempting to purge themselves of what they called "homosexual behaviors."
James Serra, one of those men, says he is one of the program's success stories. Serra stayed in the program for three years, and today he's a counselor at Love in Action.
When asked whether he was a gay man or a straight man, Serra answered, "I'm a man, period. And the way I see it, it's a behavior. Homosexual, heterosexual is a behavior."
While Serra admits he is still attracted to men, he emphasizes that he has not acted on those feelings in eight years. Even though he has yet to have a relationship with a woman, he hopes that one day he will get married and have children.
Wade Richards was Serra's roommate when "20/20" visited Love in Action. As a devout Christian, Richards says he was faced with the difficult call of whether to accept his attraction to men or try to change. Despite the time he spent in conversion therapy, he now lives his life as a gay man.
"I believe that a loving God would not have someone go through such a struggle," said Richards.
The faith-based movement to convert people's sexuality is a lucrative industry. Last spring the conservative Christian organization Focus on the Family hosted a conference called "Love Won Out" at a megachurch in Nebraska. Parents were encouraged to bring their children to the conference so they could learn the church's take on homosexuality.
In addition to the $60 entrance fee, attendees could purchase books and videos, including a book by John Paulk, former chairman of Exodus International, a network with more than 11,000 affiliated ministries. Claiming to be "ex-gay" for more than a decade and happily married to a woman, Paulk was considered a poster child for conversion therapy.
Then in 2001, "20/20" reported that Paulk was photographed coming out of a gay bar in Washington, D.C. He is still married, but stepped down from Exodus. His book about his own conversion from homosexuality is still being sold.