[Koha] koha as a cms

Hi, I try to use koha as cms, in waiting for our new website. I've followed these links http://manual.koha-community.org/3.8/en/kohacms.html and http://wiki.koha-community.org/wiki/Koha_as_a_CMS I've no error but the content can't be displayed. What i don't understand is "pages.tmpl". In /usr/share/koha/opac/htdocs/opac-tmpl/prog/fr-FR/modules , i've only pages.tt. Do i have to change tt in tmpl? Permissions, user and group are ok. Best regards samuel