I was at the part shortly after the War ends, when Kefka is in jail. I'm now looking for the Espers that have been running around causing shenanigans, as Terra and that thief guy (whose name escapes me as I named him after my cat). I'm not quite sure where to go now; this game can be very vague on objective details... very vague.
But it wouldn't be FF if it wasn't like that, I guess.