Check out page 69 of the SEE-FD_8.2.1_Installation_Guide through the below link:
http://www.symantec.com/docs/DOC5560
The options to "Encrypt all partitions upon installation" or "Encrypt these partitioins upon installation:" are only available during the client package creation (although you can do a Right-Click -> Encrypt from the Manager Console after a client is installated and running).