Hi, those tables are no longer used in 6.0.
Emails are generated & queued up as dynamic jobs in the Job Scheduler.
To look at the dynamic job queue, you can check the following tables to look for emails:
QRTZ_DYNAMIC_TRIGGERS
QRTZ_DYNAMIC_JOB_DETAILS
QRTZ_DYNAMIC_FIRED_TRIGGERS
Hope this helps.
Adam