[Zope] Plone (CMF) + TextIndexNG

Hi, how can I put Plone (CMF) to work with TextIndexNG? I mean, I want to have my uploaded M$-Office and PDF files full-text indexed by its contents. Do I have to modify Plone/CMF file classes? Thanks, Rogerio ------------------------------------------------- E-mail enviado pelo Webmail CensaNET http://www.censanet.com.br/webmail