those are the models numbers for spawning mobs or changing races in-game, force loading models is when you FORCE the eq client to load models from other zones and use them in-game(and you cant force load them using the in-game numbers) thats how i can make LDoN and PoP mobs appear in old-world areas, and it seems i did get SROs id wrong cause i removed it and got Freeport to load the water giant from the bastion of thunder. and if you do not force load the models and try to use them in-game it will not crash it will just show a human.
it seems to me like you dont know what im talking about so heres a link.
http://www.eqemulator.net/forums/viewtopic.php?t=12062