Father Owes Back Child Support And On Social Security Disability

My daughter's father has been unemployed since Dec. 2007 and has not paid court ordered child support since that time. I have not pushed the issue with the child support division as I knew that he was trying to get approved for SSD. Well, he was approved last week after almost 2 years of trying. He is stating to me that our 7yr. old daughter will be back paid for the time that he did not pay support in one lump sum and that she will also start receiving benefits from this point on. I need to know if this in true. We are located in Noble County, IN. Is there anything I need to do? Thanks in advance