your maps should be in it's own folder within the main Seose folder.
Everything to do with drops are in your NPC.ini file within your data folder.
and your drops should work like this
/* Goat */
[npc7]
{
[drop] Item=144 (the item it will drop) Chance=5 (the chance of the drop)
[drop] MaxCount=10 (This is gold drop)
}