I have a 2001 AmTran FE with two of those CE white seats in the front row. The kind with the two fold-down kid restraints.
The back covers are in sad shape and really need to be replaced, what kind of unholy nightmare of a job is that? I can find nothing online about the how-to's of the job.
If they are like mine..... oldest I have is 2003.... you have to pull staples out at bottom of cover then reach up from rear between cover and foam to remove bolts that hold car seat section.....then cover can be removed..... not terrible job if you fit between seats..lol..