1: Zip files just make stuff slower. Don't use them.
2: They have to be where you want them to be (although must be inside the Blockland/ directory). Just specify where you have the files, but ignore the path before your Blockland directory.
Example, if you have the file in (blockland installation dir is just a example):
C:\Blockland\config\mydts.dts
You should just type:
config/mydts.dts