Layout directive not taking effect

Hey guys,

I have installed mod_layout 5.0 on an Apache 2.2.6 Server.
mod_layout is loaded correctly and does find the directives I've set:
    In file: /etc/apache2/httpd.conf
       7: LayoutFooter "<!-- page automatically parsed by web server -->"
       8: Layout </HEAD> "<!-- Kilu Test Comment //-->" prepend
    In file: /etc/apache2/sites-enabled/uservhosts
       1: <VirtualHost *>
      10:   Layout </HEAD> "<!-- Kilu Test Comment //-->" prepend
      11:   LayoutFooter "<!-- page automatically parsed by web server -->"
        : </VirtualHost>


It does not however take effect. Neither on HTML nor PHP pages.
Does anybody have an clues on where the problem could be comming from?

Regards,
Samy