Create an action of the type "Replace" for TITLE
Search string: 0
(the 0 has a blank in front,
Replace string:
(leave empty)
Or if you want to be sure that only the zero behind Psalms gets removed, use
Format string: Psalms 0
Replace String: Psalms
(with a blank behind the last s)
Repeat the action until there are no more leading zeros.
If you are not sure about actions, see the FAQs: /t/967/1