Divorce Attorney Fund. Help!

My ex husband and I have four kids together.  He put us through years of financial hardship, including evictions.  We have been divorced for four years now. I'm happily married to the man of my dreams now and we have one child together. I work retail, as many hours as I can, and my husband works two jobs.  We are working together to dig me out of the hole my ex husband left me in.  The ex is still trying to keep interrupting my life and my attempts at bettering myself and fixing my credit, and is ignoring key aspects of our divorce decree in the interest of his own financial gain. I have the kids more than 80% of the time.  My husband and I pay co-payments, costs for school trips, for extracurricular activties for the kids, and now we even have drivers ed coming up (which he's also refused to help pay for).  I have multiple medical conditions but still work as often as I can for my family.  We cannot pay out-of-pocket for an attorney retainer, which is why I have created this page.  A friend of mine pointed me to this site trying to help.  I just need to fight for what is right.