Hey Ashley,
I'm using MinecraftEDU 1.5.1 build 15 and I just built an entire town using schematics I had made from another world.
The files you download should go under minecraftedu/servertool/server/schematics
At least that is the default location. I'm not sure if it would help, but instead of creating the folder, go into a server map and just copy and save a schematic of anything...call it test, then it should create the folder for you in the proper place.
use the //schem load nameofschematic
then use paste to get it into the map
Hope this helped.
Shane