I just posted a thread about this
The best stuff ever: Petrotech Carpet stain and odor remover. It's natural and works so great, AND it's easy! You just clean the excess and then spray it on and it's done..It's on sale at Petco right now, buy one, get one free! It's amazzzzzzzzzzzzing!
Petrotech Carpet Stain & Odor Eliminator For Dogs at PETCO