Stepfathers Child Support Issue

I am the stepfather of two children which have resided with me for more than 3 years. The mother of the children has now decided she is leaving. I realize I have no rights at all but have a huge question.

The marriage is breaking up because she has decided she is tired of hearing me bother her about getting into court to take care of support issues. The father of the children does not and has not paid child support for more than 5 years. He also does not comply with the court order to provide medical insurance and split the co pays on the out of pocket expenses.

My issue is that I have paid every dime of support for the children for the entire three year period of time including a bill for prescriptions for one of them which runs more than $1100.00 a month. I think when it all said and done the support I have provided the two of them amounts to well over $45,000.00. Since the mother of the children will not take him to court and even if she decided to now. I will never see a dime of the money that has been put out to support them over the three years.

I live in South Carolina. Do I have any recourse.

Also, does South Carolina have a third party reporting system available so that I could report the Father myself?

Thank you,