HELP! - not a Deadbeat

Problem #1 - I am being sued by Child Support Enforcement in Colorado for $10,000 of back support due from 1981-90 that I have already paid.

Problem #2 - Although I have some supporting documentation, I have no actual proof (i.e. receipts or cancelled checks).

Problem #3 - I retained an attorney and filed a protest. A settlement conference has already taken place, but the negotiations were never completed because my attorney filed a Motion to Quit my case when I was unable to send additional money on short notice. (I've paid him $1300 thus far).

Problem #4 - After the protest was filed and during the negotiation period, my income tax refund was intercepted and a $10,000 judgement was reported to the credit bureaus.

Problem #5 - I have until May 18th to file my own motion with the court explaining why my attorney should not be allowed to quit before he finishes what he started. Or, in any case, if a settlement is not reached, I must personally appear at the Hearing on May 31st (out of state) with or without counsel or judgement will be entered summarily against me for the entire amount. (By the way, even if I win, I can't recoverer attorney fees or personal expenses without proving malice)

Problem 6 - Time & money

NOTE - Maintaining a good credit profile is important to me in this matter, so a judgement for any amount is unacceptable. Not just my pride, but I spent 15+ years repairing my credit following my divorce and good credit is essential to my profession.

Advice? Suggestions? Resources?