In your main xwork.xml, provided berkano-user-mgt-VERSION.jar is in your classpath, you can do something along the lines of:
Note that you could also extend a package from your own application (extends="berkano-profile,myapp-package" for instance) and/or define custom interceptor stacks for each package, etc..
You'll also need a valid xwork validation.xml file at the root of your classpath. It is not provided by berkano-user-mgt, so that you can define your own validators for your actions. However, you should make sure you include at least the default ones defined by xwork, or at the very least the one used by berkano-user-mgt. (check the sources for details, then)