As you can see by the following image:
http://www.sephiroth.ws/stuff/wtf-zcl-linux.png (Large screen resolution, so I'm simply gonna link to it)
You can see that ZCL for Linux reports zelda.dat as missing, when it really does exist in the folder. (Note: I had to grab 626 for Windows just to get the support stuff like the qst files, txt files, zh file and dat files)
Might want to look into that Sean.