Hi,
A week ago I sent a mail (in french) to Unesco people listed on the page http://www.unesco.org/webworld/portal_freesoft/ you mentionned in your mail (12 July). I got no reply at all. I also tried to call them but they were too busy.
I turns out that the guy who actually wrote the content of the pages (Stephane Fermigier) is well know to have a "pragmatic" attitude and is a proeminent advocate of Open Source altough is pretends this is the same as Free Software. Therefore the content of the web site was not much of a surprise.
I'm not exactly sure what else we can do at present. We cannot force people, we can only talk to them if they want to. And apparently Unesco is not willing to hear from us at present.
Cheers,