Like I said. I read the website. Did you? Here are a couple of paragraphs from their "Who Should Attend" page. Not everyone coming to this conference is an "Ex-Gay," as you put it:
Delegates
Men and women in conflict with their same-sex attractions and who are looking for a way out.
You are not alone! This is your chance to meet people who understand. Every year, more than half of our delegates experience this conference for the first time. We have prepared dozens of workshops just for you, and our teachers know what they are talking about. So come, be equipped, and learn from others who understand.
Christians still struggling with unwanted homosexual thoughts or behavior, and need encouragement.
Join more than one thousand men and women at our conference -- those starting the journey out of homosexuality, those in the middle and those who have been free for decades. Our Freedom conference is an excellent opportunity to get reacquainted with your Exodus friends and loved ones. Our community worship time is powerful and can be life-changing. So come, meet with God, and be renewed.