Language
Install languages
cd /var/www
# German: http://www.magentocommerce.com/extension/413/
./pear install magento-community/Locale_Mage_community_de_DE
# French: http://www.magentocommerce.com/extension/414/
./pear install magento-community/Locale_Mage_community_fr_FR
# Russian: http://www.magentocommerce.com/extension/391/
./pear install magento-community/Locale_Mage_community_ru_RU
Configure language (Store View)
Admin Panel > System > Manage Stores
[ Create Store view ]
Store: Main Website Store
Name: German
Code: de
[ Save Store view ]