retrieving fields' names instd of slugs

hello,

I use this code to obtain a list of label-values to build a table:

$field_group_values = simple_fields_fieldgroup('scheda_tecnica');

foreach($field_group_values as $key => $value) {
  echo '<div class="label">' . $key . '</div>';
  echo '<div class="value">' . $value . '</div>';
}

the problem is that in $key I obtain the slug for the field, something ugly with undercores etc., while I’d prefer to obtain the nice name of the field.

is that possibile? I have the sensation I’m missing something obvious.

thanks.

http://wordpress.org/extend/plugins/simple-fields/