I think the spawn files are in the spawns/ directory. They are just .xml files that you can load using the "[xmlspawnerload filename" command.
If you just want spawns, all you need are the .xml files underneath that directory.
Then either install the xmlspawner.cs that is included in the package, or install xmlspawner2 which is a separate package in submissions, or knightshades standalone xmlspawner, and proceed to [xmlspawnerload the .xml spawnfiles.
I think you can also install the createworld.cs from bobsmarts package and run [createworld to load the spawns from a gump instead.