A install.txt почитать?

REQUIREMENTS
------------

Drupal requires a web server, PHP4 (4.3.3 or greater) or PHP5
(http://www.php.net/) and either MySQL (http://www.mysql.com/) or PostgreSQL
(http://www.postgresql.org/). The Apache web server and MySQL database are
recommended; other web server and database combinations such as IIS and
PostgreSQL have been tested to a lesser extent. When using MySQL, version 4.1
or greater is recommended to assure you can safely transfer the database.

For more detailed information about Drupal requirements, see "Requirements"
(http://drupal.org/requirements) in the Drupal Handbook.

Guidelines for setting up a server environment with a variety of operating
systems and in special cases are available in the Drupal handbook
(http://drupal.org/node/260)

OPTIONAL REQUIREMENTS
---------------------

- To use XML-based services such as the Blogger API, Jabber, and RSS
syndication, you will need PHP's XML extension. This extension is enabled by
default.

- If you want support for clean URLs, you'll need mod_rewrite and the ability
to use local .htaccess files.

Я ставлю строчку "php_value error_reporting 7" в файл .htaccess, а вы?

Полный русский перевод Drupal 5.x и еще некоторых модулей.