> I tried to download winhttrack but the setup file is 
> corrupted. What do I do now?
Try the alternate location:
<http://www.httrack.com/httrack-3.20RC4.exe>
(The size should be 3042939 Bytes)

You can also get the non-install version,
<http://www.httrack.com/httrack-noinst-3.20RC4.zip>