> What can be the problem if the copy fails?This tell us nothing useful.
"fails" could mean anything
> The website is <http://www.notifier.be>
> the copy of public website works but copy with
> protected information fails.
> I used the URL that I got from captureURL.
Don't tell us what you think you did, give us the actual settings (log file
line 2 or doit.log)
What does the log file say about the failure.

Don't use a HTT browser ID.
What was the proxy address 1.2.3.4:8080 or IPV6 fe80::74eb:8181:c5d5:31d%11
(see <http://forum.httrack.com/readmsg/25301/25300/index.html>)