> Hi, I am trying to copy a site where I need a cookie
> to authenticate. I copied the appropriate lines from
> FF, but it seems the ids parameter of the cookie is
IIRC, FF stores its cookies in sql lite, an encoded form, not in plain text.
You could NOT have pasted anything appropriate.

HTTrack Help: Authentication
<http://httrack.kauler.com/help/Authentication>
Don't forget to filter out the log out url.