Wow! Sarah, Heather, Carol what a horrible experience you went through. I think it's wrong for the elders to tell you not to report the abuse. In fact I would have reported it, I would have had a medical check up and speak to a psychologist. Once I gather their professional opinion, then I would report to the elders and only as a formality. They can not nor should not reprove or disfellowship you 'cause only a sick person would lie about that. I believe you and hope that despite leaving the organization I wish you and yours well. May the peace of JEHOVAH be with you and your family and may he exact vengeance on those who betrayed his and your trust.
One of Jehovah's Witness (because I choose to be)