Just try these shell commands:

tar xvfz httrack-3.40-2.tar.gz
cd httrack-3.40-2
./configure --prefix=/usr/local && make

# make install (root permissions required to install HTTrack)

/usr/local/bin/httrack

I think it's better to compile and prepare for install before actually doing
so because you could see if there's any error that won't let you install the
program.

It worked perfectly for me