Download and unzip opensso_enterprise_80.zip as described in the Sun OpenSSO Enterprise 8.0 Installation and Configuration Guide. The compressed Client SDK ZIP is in the zip-root/opensso/samples/ directory where zip-root is the directory in which you unzipped the OpenSSO Enterprise download.
Deploy opensso.war as described in the Sun OpenSSO Enterprise 8.0 Installation and Configuration Guide.
Install a web container on the host machine on which the Client SDK will be deployed.