Trying to create SERVER EVENT SESSION to capture blocked_process_report & xml_deadlock_report events to a file for later analysis with the following statement;
Unfortunately, the blocked_process_report was added as a traceable extended event in SQL Server 2012.
Since the extended events wizard(s) weren't added until SQL Server 2012, I would use the following query to view the available extended events:
SELECT *
FROM sys.dm_xe_objects AS Events
WHERE Events.object_type = 'event' AND Events.name LIKE '%blocked%'
ORDER BY Events.name;
Or even better read this EXCEPTIONALLY good article by Jonathan Kehayias.