The installation page for ParserFunctions states that
you need MediaWiki
version 1.7.0 or above:
http://www.mediawiki.org/wiki/Extension:ParserFunctions
According to the home page for MediaWiki the current version is 1.15.1:
http://www.mediawiki.org/wiki/MediaWiki
Is there a mistake at the ParserFunctions page? Should I go ahead and
install? Will it make any difference if I try this given the problem
with the angle brackets?
1.15 is newer than 1.7. When reading version numbers, treat the period
as a divider, not as a decimal point.
As long as you are using a version of MediaWiki newer than 1.7 (which
is a few years old), you should be ok.
V/r,
Ryan Lane