meta_descr is not part of the $subcategories array. The only items in that array are:
Code:
[categoryid] =>
[parentid] =>
[categoryid_path] =>
[category] =>
[product_count] =>
[avail] =>
[order_by] =>
[subcategory_count] =>
[is_icon] =>
[image_path] =>
[category_path] =>
So, in order to show that you would need to change the queries in /include/categories.php that build the $subcategories array.