On Thu, Jul 10, 2008 at 11:25 AM, Christensen, Courtney ChristensenC@battelle.org wrote:
http://www.mediawiki.org/wiki/Help:Magic_words
It's trying to find a template instead of the Magic Word. I wasn't sure how I should let someone know.
PAGESINNAMESPACE is not enabled on Wikimedia wikis, for performance reasons. As your link says: "Disabled by default, enable with $wgAllowSlowParserFunctions."