> I am looking for a product that...
> ... changes php in html files 
> ... keeps the names of the files (address.php should
> become address.html instead of lhsdf62.html) 
> ... does keep JavaScript as it is  
> I hope this can be done with HTTrack.

Yes, it should do the trick. Just download your site, and copy the content of
the "www.mysite.com" folder directly on the remote server (all links are
transformed into relative links by httrack)