Insulating dirt basement

Tom,
I live in a home with a dirt basement. Sections of the basement have beendug out to accommodate the old forced air furnace (now waiting to bedismantled), the new boiler and oil tank and two chimneys. There is stillone quarter of the basement that is still dirt up to about two feet fromthe house flooring. The basement is very wet, mostly due to the water thatflows in through the fieldstone wall at the front of the basement. I knowthat has to be dealt with, but for now I want to insulate the basementceiling/house floor. The floor joists are mostly cedar and no two are theexact same distance apart. What would be the best material to use that won't mind the wet and won't cause the flooring to rot?
S.
Hampden

Hi,
The best solution is to have spray foam installed over the floor and floorjoists. This will insulate the floor thoroughly and protect the structurefrom the moisture.The space should be well ventilated to try to dry it as much as possibleprior to encasing it in foam. The trapped moisture should eventuallymigrate up into the living space.
Tom