Ok, I found the error, it was typographical…
It have to use simple quotes, instead double:
<?php echo do_shortcode(‘[nggtags_ext gallery=”dog,cat” template=download]‘) ?>
and not:
<?php echo do_shortcode(“[nggtags_ext gallery=”dog,cat” template=download]“) ?>
I understand that the admin delete this topic, because it has nothing to do with the plugin
