How do I use Taxonomy Access Control module to restrict access?

I need to restrict certain content to a certain group of users. For that purpose I installed the Taxonomy Access Control module
http://drupal.org/project/taxonomy_access
For my example we will disallow access to the article in the URL
http://demos.virtualorbis.com/drupal/?q=node/4
for visitors who are not logged in (anonymous users). In other words, we will disallow access to the category this article belongs to (the "Tecnologia"/"Software" category)
In the following links you will see how my configuration options screen looks like.
http://alejandrolengua.info/pantallazos/drupal/clipboard_drupal1.jpg
http://alejandrolengua.info/pantallazos/drupal/clipboard_drupal12.jpg
To me it looks like if access to anonymous user were not allowed. But if you can see this link (http://demos.virtualorbis.com/drupal/?q=node/4)
without being logged in, it means that it is not working properly.
Can somebody there help me?

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