There are lots of old posts relating to usage of backup2ws, search on backup or backup2ws !
Basics:
Install the latest rpm for your OS
Configure settings in the new server manager panel, the descriptions are fairly self explanatory.
I suggest you create the Disaster Recovery (911) backup job and also a small test backup of say /root.
Manualy invoke the test backup of /root to establish if you have the correct settings etc, it should complete in approx 1 minute.
Check your workstation to see if the backup file was created.