> I found webhttrack in the default folder with Red Hat, but
> the script doesn't find a folder (html I think) and I
> couldn' t get anything else.

Yes - you need three post-install lines after the "make 
install":

$ more INSTALL.webhttrack
ln -s ../doc/httrack/html /usr/share/httrack/
mkdir -p /usr/lib/httrack && chmod 755 /usr/lib/httrack
mv /usr/bin/htsserver /usr/lib/httrack/

I will definitely have to find a way to cleanly include 
these lines in the configure script.