Don't want to jack Falconman's thread, but I also did the newspaper and vinegar part too. I also had a cup of vinegar in the thing for a week, another week of baking soda in a large dish with some distilled water in it to keep it a bit moist for just over a week, then stuck empty boxes and cardboard cigar boxes as well for over a week as well.
I wiped down the interior, siliconed any electrical holes and other openings first. After that is when I added the vinegar and put a fan in there with the door cracked a bit to help move air in and out for a week. It all seemed to work out. Keep trying.