They changed the mounts for '03, so you need that year or newer.
How much you looking to spend on it? My back seat has been in the rafters for the last few years, but never really thought about getting rid of it. I also don't plan on ever using it either.
I have a buddy at work that has a new rear seat still in plastic that he bought for his yj but it is too wide he is looking to sell. It is gray with colored threads running through it. It turns out it was for a tj not sure what year or the mount style. Could get pictures if you are interested