Found the links, you can find the OCL editor in any of the two links:
http://www.hut.fi/~jmikkone/
or
ftp://ftp.sff.net/pub/people/zoetrope/MOO2/Utilities/
Incidentally, you can find several other utilities for moo2 in the links, but i found the OCL editor the most usefull so far...
Ah, make sure you download also the file "ocl-fmt4.txt" that you can find in the second link, as this file have a more updated explanation of how the OCL input file format works... (you will know what i´m talking about after reading the readme of the OCL editor)...