According to this jira issue (http://jira.jboss.com/jira/browse/JBESB-808) there is a way to define the table name for Message Store.
Any help in how to do it, I can't find this for JBESB 4.2.1 (conf files + docs).
ok I see the "org.jboss.soa.esb.persistence.db.table" in jbossesb.properties section "dbstore".