divorcing but own business together

Any advice gratefully received.
Been married 24 years and now divorcing. We own a business together (limited company) Also have 3 children - boy 11, girls 7 & 3

Had to sell the family house last year to put money into save the business. Both now living in rented. Business is slowly improving but im not sure if it has a long term future.

I take a minimum income from the business (£7000 in 2012/2013) and so does he. We are then supposed to take dividends but the last couple of years we have not.

I would be grateful for any advice on the following -
what benefits i would be entitled to - child tax credit, housing benefit etc. Apologies as I am totally clueless regarding benefits

What his financial responsebilites are bearing in mind he also shows a minimum income. He is not that interested in the children (unless there is somebody to impress) and sees them maybe once a week.

Any advise would be greatfully received