[Mediawiki-l] Titlekey

[Matt Long]

How is this extension installed 
http://www.mediawiki.org/wiki/Extension:TitleKey ?
I placed: ( require_once( "$IP/extensions/Titlekey/titlekey.php" ); ) 
into the localsettings.php
and got this error when trying to make a new page:
A database query syntax error has occurred. This may indicate a bug in 
the software. The last attempted database query was:

    (SQL query hidden)

from within function "TitleKey::setBatchKeys". MySQL returned error 
"1146: Table 'wiki.titlekey' doesn't exist (localhost)".