Introduction - If you have any usage issues, please Google them yourself
Simply go to your PrestaShop web directory and use installer :-)
If you have any PHP error, perhaps you don t have PHP5 or you need to activate it on your web host.
Please go to our forum to find pre-installation settings (PHP 5, htaccess) for certain hosting services (1&1, Free, Lycos, OVH, Infomaniak, Amen, GoDaddy, etc).
English webhost specifics settings :
http://www.prestashop.com/forums/viewthread/2946/installation_configuration___upgrade/preinstallation_settings_php_5_htaccess_for_certain_hosting_services