just a thought, what if the odor has gotten into the sub floor underneath the carpet. I had a co-worker rip out all the carpet due to an animal smell only to realize that he had to rip out the sub floor also. my parents have to dogs and to get the smell of wet dog out the use febreeze, it works wonders in houses with pets. there are also products that are used in the automotive industry to take away the smell of mildew and other smells wet carpet can have. I hope this helps
