Don't worry! It's only stuff...

cd /var/www/
./pear install magento-community/magento_easy_lightbox
 
# enable by sql
INSERT INTO core_config_data (scope, scope_id, path,value)
VALUES ('default', 0 ,'easy_lightbox/general/enabled', '1')
ON DUPLICATE KEY UPDATE value = '1';
 
# clear cache
rm -r var/cache/
 
# enable in admin menu
change settings > Preferred State: "beta"
magento-community/magento_easy_lightbox
 
first LOGOUT and LOGIN again!
 
Admin > Templates-master >Easy Lightbox > General
Enable EasyLightbox: Yes
 
LINKS
http://www.magentocommerce.com/extension/1487/magento-easy-lightbox