You may have to be more specific. Unlike "coupled" content management systems like Drupal, Alfresco does not provide a running web site out-of-the-box. This changes when you consider Web Studio but you said you were using 2.1.
Alfresco WCM provides a way to manage the files that make up your web site, but it is up to you to give it the files to manage. The up side is you can use whatever technology you want and Alfresco will happily manage those files.
