You can only get the latest running version on Fileconnect.
For old version Packages you need to contact technical support
If you need the client package then go through below article but it provie 11.0.7
https://www-secure.symantec.com/connect/articles/how-import-sep-11x-package-sepm-121
QuickStart Guide - Create and Manage Support Cases in SymWISE
http://www.symantec.com/docs/HOWTO31132
OR
Regional Support Telephone Numbers:
United States: https://support.broadcom.com (407-357-7600 from outside the United States)
Australia: 1300 365510 (+61 2 8220 7111 from outside Australia)
United Kingdom: +44 (0) 870 606 6000
Additional contact numbers: http://www.symantec.com/business/support/contact_techsupp_static.jsp