Hi Gardin,

thx for your response.

First, I use Mozilla/5.0 (Windows; U; Windows NT 5.1; fr; rv:1.8.1.9)
Gecko/20071025 Firefox/2.0.0.9 for my browser with WinHTTrack Website Copier
3.42. 

I have succeed to mirror a complete forum under the aceboard.fr plateform with
authentification... I guess I have understand how to use the catch url option.
However, I still have problem under the vBulletin plateform.

I have follow all the step in the doc (WinHTTrack/WebHTTrack (GUI version for
Windows or Linux/Unix)). Also, I have follow the FAQ "I can not access several
pages (access forbidden, or redirect to another location), but I can with my
browser, what's going on?" I still have the same problem. 

There is what I have done:

1. Start a new project in Httrack.
2. Put the good proxy settings
3. Capture the login page with my username and password in the form (i also
tried to put my username and password in the fields of the "add url"
function). 
4. Put my Internet connection settings back.
5. Copy the cookies.txt from firefox into my httrack project folder.
6. Strat the mirroring. 

In fact, I only succeed to copy the first page that have protected content. In
my previous post, I said that after the login, there was a page of
redirection. So, I have try to catch the page after the redirection. This way,
I get the protected content only of the first page.

In short, I have tried:

login --> (catch) redirection page --> page with protected content  == unable
to access to protected content
login --> redirection page --> (catch) page with protected content  == httrack
copy only the first page with protected content and all rest are pages like :
"you need to login..."

If you have an idea to solve my problem, it will be very appreciated.

Fred