The migration and upgrade process is fairly simple and straightforward.   However, do to a number of inquiries on the topic, I posted a summary on Symantec Connect.   See http://www.symantec.com/connect/articles/migrating-oobm-6x-7x-what-happens-intel-scs

 

If you need further assistance and insight - contact Symantec support teams or post back on the article to share with the community