install.php giving some problem

I did..

# Unzip the package in an empty directory.
# Open up wp-config-sample.php with a text editor like WordPad or similar and fill in your database connection details.
# Save the file as wp-config.php

I changed just three thinfs in wp-config.php

define(‘DB_NAME’, ‘wordpress’);

/** MySQL database username */
define(‘DB_USER’, ‘myusername’);

/** MySQL database password */
define(‘DB_PASSWORD’, ‘mypassword’);

– Created a database in MYSQL named “wordpress”
– Opened /wp-admin/install.php

it’s giving below error..

………………………………………..

‘.__(‘Already Installed’).’

‘.__(‘You appear to have already installed WordPress. To reinstall please clear your old database tables first.’).’
‘);} switch($step) { case 0: case 1: // in case people are directly linking to this display_header(); ?>

ReadMe documentation at your leisure. Otherwise, just fill in the information below and you\’ll be on your way to using the most extendable and powerful personal publishing platform in the world.’), ‘../readme.html’); ?>

error) ) wp_die($wpdb->error->get_error_message()); display_header(); // Fill in the data we gathered $weblog_title = isset($_POST[‘weblog_title’]) ? stripslashes($_POST[‘weblog_title’]) : ”; $admin_email = isset($_POST[‘admin_email’]) ? stripslashes($_POST[‘admin_email’]) : ”; $public = isset($_POST[‘blog_public’]) ? (int) $_POST[‘blog_public’] : 0; // check e-mail address if (empty($admin_email)) { // TODO: poka-yoke die(‘

‘.__(“ERROR: you must provide an e-mail address.”).’
‘); } else if (!is_email($admin_email)) { // TODO: poka-yoke die(‘

‘.__(‘ERROR: that isn’t a valid e-mail address. E-mail addresses look like: [email protected]’).’
‘); } $wpdb->show_errors(); $result = wp_install($weblog_title, ‘admin’, $admin_email, $public); extract($result, EXTR_SKIP); ?>

admin

‘.__(‘Note that password carefully! It is a random password that was generated just for you.’).”; ?>

………………………………………….

Please tell me where I’m going wrong?