在安装Drupal6.2后出现的问题

warning: array_fill() [function.array-fill]: Number of elements must be positive in x:\newsys\includes\database.inc on line 235.
warning: implode() [function.implode]: Invalid arguments passed in x:\newsys\includes\database.inc on line 235.
warning: array_keys() [function.array-keys]: The first argument should be an array in x:\newsys\modules\user\user.module on line 500.
user warning: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1 query: SELECT p.perm FROM pt_role r INNER JOIN pt_permission p ON p.rid = r.rid WHERE r.rid IN () in x:\newsys\modules\user\user.module on line 500.
warning: mail() [function.mail]: Failed to connect to mailserver at "localhost" port 25, verify your "SMTP" and "smtp_port" setting in php.ini or use ini_set() in x:\newsys\includes\mail.inc on line 193.
Unable to send e-mail. Please contact the site admin, if the problem persists.

以上是在出现提示Drupal installation complete后所出现的内容
请高人多多指教啊！！！！！感激！！！