My ex-husband has not worked in 2 yrs. Can I get back child support from his unemployment benefits?

My ex husband has not worked in 2 yrs, has no incentive to work or live a healthy lifestyle, which has resulted in a recent heart attack. He now has the perfect excuse for not working, does not carry court-ordered life or health insurance for our child, and is $7k in arrears for child support. How can I receive money from his unemployment? I can't afford an atty, but plan to represent myself in support enforcement paperwork. What else can I do?