Look for a line in the information that you entered that doesn't have a semicolon at the end of the line. Make sure the database your entered is wrapped in single quotes. Line 47 may not be where the problem is, in my config.php its a blank line. Check all your data inputs.
Error description: mysql_connect() [function.mysql-connect]: Access denied for user 'root'@'localhost' (using password: NO) /home/corza/public_html/includes/class_core.php on line 311
The database has failed to connect because you do not have permission to connect to the server. Please confirm the values entered in the 'includes/config.php' file.