Flickr Photo Gallery plugin – how to get recent photos

Anyone knows how to initialize recent photo parameter in this argument, so I can use it in the sidebar?

function flickr_show_photos ($album = null, $photo = null, $page = 0, $tags = null, $recent = null)

and

<?php flickr_show_photos($_GET[‘album’], $_GET[‘photo’], $_GET[‘page’], $_GET[‘tags’], $_GET[‘show’]); ?>

Thanks!