Drupal 6.22: updating modules

To update the Google Analytics 6.x-3.3 module, download the last version, decompress and replace the current directory in /var/www/drupal-sites/all/modules. This location must have only one version of the module. For example, if you rename the directory of the previous version (ex. google_analytics_old) and keep it in the same place, Drupal may not use the updated version.