So my builders made a spawn on a flat world, we are wanting to change this spawn so it's on a normal terrain, is there any way to do this? I have multiverse.
The best way would be to use worldedit. (http://dev.bukkit.org/bukkit-plugins/worldedit/). Select the spawn area with //wand then do //copy and //schem save spawn.schematic . Pop into your normal terrain world and do //schem load spawn.schematic and do //paste - your spawn should now be pasted in your other world.