Help with header

[andreamontemaggiore]

Hi, i installed the widget in my wordpress admin area, i tried to insert the code

'', 'event' => 'Event description here', 'date' => '12 March 2011', 'hour' => 16, 'minutes' => 45, 'seconds' => 0, 'format' => 'yowdHMS', 'link' => false, // set true to remove link, false to support me );

echo shailan_CountdownWidget_shortcode($countdown);
}
?>

in the header of my site but nothing is showing. The site is handstandconvention.com