1) Back up everything.
2) Unzip the CLIENT download, and apply it to the Deployment Server.
3) Load the remaining pieces into Server Manager via the Managed Software section.
4) Upgrade the Management Console.
5) Upgrade all the Management Agents.
6) Distribute the components to their respective places (Enterprise component to the Enterprise Server, JAS component to the JAS Servers).
7) Use Server Manager to upgrade the remaining servers.