Downloaded pictures in flickr doesn't show on wordpress site

I have downloaded some picutres in flickr and the plugin slickr-flickr is suppose to show the pictures on the wordpress site but it doesn’t. I had taged just one of 7 downloaded pictures. I upgrated slickr-flickr and the one pictures with tag appeared on the page. Even if I have added tags to the other picutes they don’t show on the site. Why?