I downloaded, and it didn't work properly.
how should the folders be set up? should folders exist? I made a WTC folder to put all the files related to this map in, and then the game recognized that the map existed but fatal errored when I tried to play.

I'm sorry if this sounds stupid, but i am a newbie at programming.

EDIT: I looked at other custom maps, and tried to replicate what they had. it didn't help.
can someone show/tell me what it is supposed to look like? (White_bear in particular, if you could show/tell me how the folders are supposed to be set up, I would be very grateful)

Welcome to GT You shouldn't bump old topics though. To install a custom map extract the file and copy the three letter file(examples would be AAA, WTC, etc) and put it in C:/Program Files/LucasArts/Battlefront II/GameData/Addon or to wherever your game is installed to. If you don't have an addon folder create one.