> (Note that there are no cookies trapped by CatchURL
> except the google-analytics ("__utm...") and PHP
> Session ID is the only cookie the server sends
> *after* the login is successful.)
> 
> Other than that, are there any thoughts on how to
> work around it?  Or am I missing/misinterpreting
> what's going on?
The session ID is precisely what the capture url should have so Httrack can
take over from there.