Hi Kevin,
I have not tested this code. Change the keys and test it.
add_action('geodir_before_description_on_listing_detail', 'gd_profile_custom_content');
function gd_profile_custom_content() {
global $post;
?>
<div class="gd_profile_custom_content_wrapper">
<div class="column1">
<div>
<?php echo geodir_get_post_meta( $post->ID, 'custom_field_key_goes_here', true ); ?>
</div>
<div>
<?php echo geodir_get_post_meta( $post->ID, 'custom_field_key_goes_here', true ); ?>
</div>
</div>
<div class="column2">
<<div>
<?php echo geodir_get_post_meta( $post->ID, 'custom_field_key_goes_here', true ); ?>
</div>
<div>
<?php echo geodir_get_post_meta( $post->ID, 'custom_field_key_goes_here', true ); ?>
</div>
<div>
<?php echo geodir_get_post_meta( $post->ID, 'custom_field_key_goes_here', true ); ?>
</div>
</div>
</div>
<?php
}