I had some issues to use Sharepoint agent. I suggest if plan to implement in a client you have some understanding about Sharepoint Point infrastructure.

See can details to setup NetBackup Sharepoint Agent in TN;

http://www.symantec.com/docs/TECH75799

 

For restore operations, remember of these order;

To recover a SharePoint 2007 Server (without BMR)
1 Configure the destination host the same as the the original host.
2 Install SharePoint 2007 and any other required software.
3 Create a new Configuration database and attach to it using the SharePoint
configuration wizard.
4 Configure the NetBackup master server that has the backup images from the
original host as the master server for the destination host.
5 Restore all the components of the SharePoint farm, except the Configuration
database. Restore the components in the following order:
Search database
Web Application(s)
Shared Service Provider, if any
Single Sign-on database, if any
Search Index Files

Best Regards.

Wellington Teixeira.