A.S.
I got this from http://answers.yahoo.com/question/index?qid=2006091806071...
There are non-acetone nail polish removers. Try buying some and try using it on an area of the floor that won't show first. Only use enough to dampen a soft cloth. Then, if it doesn't take the finish off, work slowly and gently over the polish without trying to get any on the rest of the floor. If non-acetone remover isn't strong enough and the stain is very noticable, you might have to go with the stonger type of remover. If the finish ends up coming off, you can try to match it with something like Polystain. Use thin coats, applied with a sponge brush, and sand with very fine (220 grit) sandpaper between coats to smooth and level it. It may not come out perfect, but it will porbably be a lot less noticable than the nail polish stain.