Did you try this?
http://forums.relicnews.com/showthread.php?t=221824In addition, remove the europeinruins.module and all other .module files from mods that start with a letter coming before the "R" (Reliccoh.module). The worldbuilder has a bug that automatically makes it load the first alphabetically listed .module that it finds. In your case it probably opens the Europeinruins.module when in fact it should be opening the Relic one.
When you're done with mapping, run the EIR launcher again and it will reinstall the .module for you.