Works great. The link supplied by Roeder
(http://httrack.kauler.com/help/Authentication) must be read carefully for
success.

Another hint: Once logged into the web, the internal spider can incidentally
find (and hit) the logout links that usually appear in webs. If so, httrack
stops loading frustantly.

So, a "-*logout*" (or any other word present inside logout links) filter is
necessary for successful mirroring.