Install the Build & Test plugin on your Hudson server

On your Hudson site, get the CollabNet plugin from the Plugin Manager.

Note: You need administration privileges on your Hudson site.

In your main Hudson page, select Manage Hudson > Manage Plugins.
In the Available page, select the Promoted Builds plugin. The File Release component of the CollabNet plugin requires this.
Select CollabNet Plugin and click Install.
Restart Hudson.

On your Hudson project's Configure page, each plugin component is available as an option under Post-build Actions.