Warning: include(common.php) [function.include]: failed to open stream: No such file or directory in D:\PHPnow-1.5.1\htdocs\index.php on line 2

Warning: include() [function.include]: Failed opening 'common.php' for inclusion (include_path='.;C:\php5\pear') in D:\PHPnow-1.5.1\htdocs\index.php on line 2

Fatal error: Call to undefined function get_db_conn() in D:\PHPnow-1.5.1\htdocs\index.php on line 4