Drupal Italia il riferimento italiano per Drupal

ciao a tutti
ho problemi di installazione con la 5.3 ita:

Server Apache 2.0 Handler
PHP Version 5.1.2
MySql 5.0.22
la install.php mi visualizza:

Warning: include_once(./sites/default/settings.php) [function.include-once]: failed to open stream: Permission denied in /home/ettoreinnocente/public_html/includes/bootstrap.inc on line 243

Warning: include_once() [function.include]: Failed opening './sites/default/settings.php' for inclusion (include_path='.:/usr/share/php:/usr/share/pear') in /home/ettoreinnocente/public_html/includes/bootstrap.inc on line 243

Warning: Cannot modify header information - headers already sent by (output started at /home/ettoreinnocente/public_html/includes/bootstrap.inc:243) in /home/ettoreinnocente/public_html/includes/bootstrap.inc on line 531

Warning: Cannot modify header information - headers already sent by (output started at /home/ettoreinnocente/public_html/includes/bootstrap.inc:243) in /home/ettoreinnocente/public_html/includes/bootstrap.inc on line 532

Warning: Cannot modify header information - headers already sent by (output started at /home/ettoreinnocente/public_html/includes/bootstrap.inc:243) in /home/ettoreinnocente/public_html/includes/bootstrap.inc on line 533

Warning: Cannot modify header information - headers already sent by (output started at /home/ettoreinnocente/public_html/includes/bootstrap.inc:243) in /home/ettoreinnocente/public_html/includes/bootstrap.inc on line 534

Warning: Cannot modify header information - headers already sent by (output started at /home/ettoreinnocente/public_html/includes/bootstrap.inc:243) in /home/ettoreinnocente/public_html/includes/common.inc on line 141

Select an installation profile
The following error must be resolved before you can continue the installation process:
In your ./sites/default/settings.php file you have configured Drupal to use a server, however your PHP installation currently does not support this database type.
Drupal
Select this profile to enable some basic Drupal functionality and the default theme.
Drupal in Italiano
NOTA: questo profilo di installazione e la traduzione di Drupal è stata in parte creata ed è al momento mantenuta dalla comunità italiana di Drupal Italia (vai al sito).
Il profilo selezionato aggiungerà al footer il link a Drupal.org e Drupalitalia.org. Se possibile lasciate questi due link come forma di ringraziamento al nostro lavoro. Grazie.
Seleziona questo profilo per installare Drupal in italiano.

chi mi aiuta? grazie