display address on listing preview page

Hi,

I would like to display the address of the listing next to the listing image (and in the sidebar as well). I found out how to do this with the code below. The only problem is that the address is not being displayed on the preview page with this code. How can I solve this?

add_action( 'geodir_details_main_content', 'custom_details', 31 );

function custom_details() {

global $post; 
global $wp_query;

$postid = $wp_query->post->ID;

$current_posttype = geodir_get_current_posttype();

	$hc_address=geodir_get_post_meta($postid,'post_address',true); //address

	echo 'Address:'.$hc_address.';
}