I was able to place the map in one of my offline test maps without a problem, so we know that the format of the file is okay.
I suggest you go through NHawks nice list and double check the setup of the terrain folder, texsrc folder, etc. I think you are very close.
Is your terrain name "test"? the name of the clipboard map file needs to be the same... I have a suspicion that this might be the problem.
ie., all the pieces of your terrain need to be one name (8 letters or less)...
test.oba, test.typ, test.elv, test.bmp, etc... or it will not work.