Pedro Cordeiro

meu sistema de cadastro com login e senha, esta mostrando este erro: Warning: mysql_connect() [function.mysql-connect]: Unknown MySQL server host 'mysql....' (25) in /home/.../public_html/.../enviar_cadastro.php on line 4 Warning: mysql_select_db() [function.mysql-select-db]: Access denied for user 'root'@'localhost' (using password: NO) in /home/.../public_html/.../enviar_cadastro.php on line 5 Warning: mysql_select_db() [function.mysql-select-db]: A link to the server could not be established in /home/.../public_html/cordeiro/enviar_cadastro.php on line 5 Warning: mysql_query(): supplied argument is not a valid MySQL-Link resource in /home/.../public_html/cordeiro/enviar_cadastro.php on line 7 Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in /home/.../public_html/cordeiro/enviar_cadastro.php on line 8 Warning: mysql_query(): supplied argument is not a valid MySQL-Link resource in /home/.../public_html/cordeiro/enviar_cadastro.php on line 30 Por gentileza, alguém poderia me ajudar. Preciso muito criar este sistema de cadastro no meu site