Displaying the latest posts from a custom field group - php

Question

i have this custom Metabox field group from https://github.com/WebDevStudios/Custom-Metaboxes-and-Fields-for-WordPress/wiki/Field-Types#group containing 3 fields and displayed on the Products page template, i want to call the latest posts the client add to display them on my front-page. here is the code of the custom fields.
/**
* Repeatable Field Groups
*/
$meta_boxes['field_group'] = array(
'id' => 'field_group',
'title' => __( 'Manage your products here', 'cmb2' ),
'show_on' => array( 'id' => array( 11, ) ), // Specific post IDs to display this metabox
'object_types' => array( 'page', ),
'fields' => array(
array(
'id' => $prefix . 'repeat_group',
'type' => 'group',
'options' => array(
'group_title' => __( 'Product {#}', 'cmb2' ), // {#} gets replaced by row number
'add_button' => __( 'Add Another Product', 'cmb2' ),
'remove_button' => __( 'Remove Product', 'cmb2' ),
'sortable' => true, // beta
),
'fields' => array(
array(
'name' => 'Product Name',
'id' => 'product_name',
'type' => 'text',
),
array(
'name' => 'Product Description',
'description' => 'Write a short description for this Product',
'id' => 'product_description',
'type' => 'textarea',
),
array(
'name' => 'Product Image',
'id' => 'product_image',
'type' => 'file',
),
),
),
),
);
UPDATE:
i found this http://codex.wordpress.org/Function_Reference/wp_get_recent_posts but i still can't figure out how to make it get the posts from the custom fields