This is the current list of completed editors for Final Fantasy Tactics A2 that is currently downloadable.
Lennart's Job and Ability Editor (Let's you edit the Abilities of all Races, Job's, Items, Mirrored Items, Summons and Enemy Abilities)
Job and Ability Editor (http://ffhacktics.com/smf/index.php?topic=9486.msg185134#msg185134)
DeSgeretjin's all in one Text, Command List, and Enemy Formation Editor
Text, Command Sets, and Enemy Formation Editor (http://ffhacktics.com/smf/index.php?topic=11989.msg223150#msg223150)
bcrobert's FFTA2 Equipment Nightmare module, you can find the nightmare program in this post as well.
FFTA2 Equipment Nightmare Module (http://ffhacktics.com/smf/index.php?topic=9715.msg188685#msg188685)
AGodDangMoose's FFTA2 Class and Recruitable Units Nightmare Modules
FFTA2 Class and Recruitable Units Nightmare Modules (http://ffhacktics.com/smf/index.php?topic=11990.msg223151#msg223151)
AGodDangMoose's FFTA2 Bazaar Nightmare Module
FFTA2 Bazaar Nightmare Module (http://ffhacktics.com/smf/index.php?topic=11990.msg223171#msg223171)