This is a comment on Action: New InterWikiList, posted by EoNy at 11.09.2007 22:37

View source for Comment 9

changed fopen parameter,

in order to show the localmap.conf you have to 

   1. open the interwikilist.php file in your /action folder
   2. replace "interwiki.conf" with "localmap.conf"
   3. save as e.g. interwikilocal.php
   4. open a wiki page and type ~{{interwikilocal}}