Thanks a TON for all of this! I edited the bejeezus out of my own files and now it appears to be fully functioning again. \o/ Including ALT+T making my Amistr go attack things.
Also, if anyone wants to add the new custom monsters from Poporing Island to their CustomMonsters.lua file (tutorial
here for those who don't have it yet):
CustomMonsters[2576] = true -- Cupcakering
CustomMonsters[2581] = true -- Deviruchiring
CustomMonsters[2863] = true -- Foxring
CustomMonsters[2865] = true -- Jailring
CustomMonsters[2864] = true -- Orcring