1997 Ford Expedition

Interior problem
1997 Ford Expedition V8 Four Wheel Drive Automatic 85,000 miles

I recently had to make a quick stop with an ice chest in the back of my Expedition causing the ice chest to tip over pouring ice and water all the way to the front of the car. The interior carpets are now dry for the most part but the next day I noticed the sound of water sloshing from back to front directly under me when I stopped, also the water will rush from front to back of the car when I accelerate. Where has the water gotten to, and how can I remove it myself before it begins smelling and possibly causing mold?
January 18, 2009.

Hi: The only thing I can suggest is to lift the carpet in a few places to check for water. The only thing there is a floor pan. I can't think of where it would stay.