How to get attachments contents indexed ?

[tamax]

I've just figured out that my documents indexation doesn't work...
I think it comes from the packages installation :
I didn't find pdftohtml 0.36, html2text 1.3.2a and wv 1.0.2-0.1 and I replaced them by : poppler-utils, htmldoc and libwv-1.2-1
I had no error installing the wiki but once installed I had no attached document indexation... so no result displayed in documents search :(
Does anybody has ever faced this problem ??
Regards,
Maxime.

[tamax]

May somebody tell me if the packages I had to replace still work with the wiki ??
(I made a mistake : I found the package html2text, but not the others)
I was also unable to find these 2 packages : php4_mcrypt & php4_imagick (neither in php5).
BTW I'm using Ubuntu 6.10.
thanks.