DBDataObject Nubee

I am using DB_DataObject for the first time and I am in love. As with any worthwhile, lasting relationship, I can see this one is going to require some serious commitment and patience. I am trying to use a method to execute a DBDO query and I want to be able to access the object that it returns but I don't quite get what this baby is returning. Here's my code; The "factory" class: class UserDBServices {

    function authenticate($userName, $userPass)
    {
        $user = new DataObjects_Users();
        $user->password = $userPass;
        $user->username = $userName;
        $user->find();

//create a new User object upon successful login if($user != null) { $user->fetch();

		    return $user;

}else{

		    $_SESSION['loginError'] = 'loginError';
		    header('location:'.LOGIN_FORM_VIEW);
		    exit;

} } } The implementation: $person = new UserDBServices(); $person->authenticate('joeuser', 'letmein'); echo $person->first_name; echo $person->last_name; This does not work the way I'm trying to use it here, but this is what I want it to do. Can anyone help me understand how to access the values that DBDO returns? Thanks, Don