Spotlight Importer not working

I have installed Script Debugger Spotlight Importer (from Late Night Software, http://www.latenightsw.com/sd3.0/spotlight.html)
and waited until mdimport, mds were done reindexing but Spotlight doesn’t find text in my compiled scripts.
(my script folder is in the System Library /Library instead of ~/Library, would that matter?)

Did anybody have better results…?