Nice post. The command line (log file line two) tells us what you did, not what
you think you did.

> I followed all the istructions written on the
> CatchURL tutorial, with two different computers,
Yes captured correct.

> The result is everytime the same: "Password not
> correct"
Either you're entering the username or password wrong (caps?) or something
else is wrong.

> (winhttrack -WC2%Ps0%s%uN0%I0H0%kf2A25000%f#f -F
> "Mozilla/4.5 (compatible; HTTrack 3.0x; Windows 98)"
> -%F "<!-- Mirrored from %s%s by HTTrack Website
> Copier/3.x [XR&CO'2010], %s -->" -%l "it, en, *"
> <http://www.poltiassistance.com/chk_psw.cfm?LanguageI>
> D=it?>postfile:C:\Downloads\__HTTRACK\poltiassistanc
> e\hts-post0 -O1
> C:\Downloads\__HTTRACK\poltiassistance +*.css +*.js
> -ad.doubleclick.net/* -mime:application/foobar
> +*.gif +*.jpg +*.png +*.tif +*.bmp +*.zip +*.tar
> +*.tgz +*.gz +*.rar +*.z +*.exe
> -http://www.poltiassistance.com/logout.cfm
> -http://www.poltiassistance.com/manuali/* )
1) don't need the +gif +jpg... If you want everything just use the near flag
(get non-html files related)
2) If you're not on the top level page, is the logout url still at the top
level. Some sites, the logout looks like it is on each level. -*/logout*
should be sufficient.
3) Some sites do not like an HTTrack browser ID. I only run using msie6 ID.