I have submited this to bugtrack:
It would be nice to be able to fully copy an ISPConfig configuration from an old serveur to a new one.
I have an outdated serveur so it take a new one.
instead of recreating all DNS, Sites, ftp, mail, etc... I would juste need to log to my new serveur and put IP and Admin ID ( and pass ) to transfert all content to my new serveur.
I don't know if it is doable or not but it would be great I think.