You have sent basic information about your system to Sun, but have not purchased an update management subscription. At this service level, you can use the Update Manager application to locally manage updates, which includes doing the following:
Viewing lists of installed updates
Managing security updates on your system
Analyzing your system for appropriate updates
Installing and uninstalling appropriate updates
Resolving update dependencies
Monitoring update download and installation status
Being notified when new updates for your system become available
If your update management environment includes a Sun Update Connection Proxy and your system is a client of that proxy, your client system does not need to be registered to use the Update Manager software. However, the system that acts as the proxy must be registered.