sizble debt/lack of incom

Well, I never thought this would happen to me...but it did. My husband is self employeed and his business just tanked. He has been waiting for over 45 days for checks to come in and if you do the math you already end up late for one months bills and the next one is already due. If you lack customers, like he does now you are really in a bind. My husband owes over 60K between taxes, credit cards, and vendors. Plus, he is unable to add to our household income and we are behind in the mortgage payment and equity loan by one month. I work, but not enough to cover everything. I ended up paying some bills and food with a credit card so now I'm about 40K in debt. We can't lose our house! we have 2 children in school and I can't even afford to pay a mover at this point. What's next? Please help! He is looking for a full time job but at the age of 51 chances are looking dim!