Hello Wilson,
In the UK they do have a difference training. I might be going sept/okt, or go for the whole shabang again, not sure yet.
https://education.symantec.com/Saba/Web/seuk
Title Symantec Enterprise Vault 8.0 Differences
Description See Attachment below
Abstract This course is intended for Enterprise Vault system administrators who are familiar with Enterprise Vault 2007 and would like an understanding of the new features in Enterprise Vault 8. The differences course will not be covering general EV administration principles. This will be covered in the Enterprise Vault 8 Administration course.
Not sure if this is being wrong in your area of the world, but check out the Symantec site.
Gertjan
Regards. Gertjan