Drupal 7 content translation

• Enable the "Locale" Module
• Enable the "Translation" Module
• Put all translating strings with t(). Example. t('Hello, my name is %name.', array('%name' => 'John');
• String Overrides in settings.php. Example:
  $conf['locale_custom_strings_en'] = array(
              'forum' => 'Discussion board',
              '@count min' => '@count minutes',
              ‘home’ => ‘Sweet Home’,
  );
• Generate .pot Files with translation template extractor (http://drupal.org/project/potx))
• Put all strings and relevant translation in .po file
• Install this .po file on the existing Site