The Indonesian locale was added there : http://svn.projects.ez.no/ezpublish_translation/trunk/locale/ind-ID.ini. You may want to have a look at it.
Also, we'll need to add the Indonesian language there : http://svn.projects.ez.no/ezpublish_translation/trunk/translations/. I guess the language + country codes will be the same as the locale's, namely 'ind-ID'. Can you confirm this so that i can add it there and let you safely start the translation ?
Cheers,
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Nicolas Pastorino
Director Community - eZ
Member of the Community Project Board