You can use the SharePoint Agent to back up and restore SharePoint Portal Server 2003 farm components, which include the following:
Portal sites and their associated databases, which include the following:
Windows SharePoint Services sites and their associated databases
Document Libraries (Web Storage System-based)
Individual documents and their versions can be backed up from and restored to Web Storage System-based document libraries, or redirected to file paths.
Document Libraries / Picture Libraries (Microsoft SQL Server based)
Individual documents and their versions can be restored from full database backups.
Individual objects and their versions can be restored from full database backups.
Individual objects can be restored from full database backups.
See the Microsoft SharePoint documentation for more information about lists and list items.