My ex owes me aprox $4.500.00 from our divorce back in 1999. I never pressed the issue but recently I did him a favor & loaned him some $$ just to have him laugh & say he doesn't plan to pay it back because I can't prove it. Well I can't prove the latest loan but I do have the divorce papers saying he owes the $4,500.0 plus 12% per year. He owns a truck worth aprox $6,000.0 which he plans on selling soon-can I put a lien on it? How? Thx