Command Line backup
I don't see that it is entirely feasable to use the backup utility in download mode... when you have Gigs of data, and 100's of domains. The FTP utility is OK, but doesn't support PASV FTP (I'm assuming... as it connects and fails when attempting to transfer data).
I run cron jobs to backup everything daily/weekly/etc. Would be nice to have a command line utility that can create a ISPConfig official backup (which can be restored from).
Please let me know if such a thing already exists and I don't see it.