Download HTTrack, read the documentation, the FAQ, the help site, download the
website and use a FTP client to upload it.
<http://www.httrack.com/html/index.html>
<http://www.httrack.com/html/faq.html>
<http://httrack.kauler.com/help/Home>

<http://www.google.fr/search?hl=fr&q=httrack+help>