After spending well over an hour attempting to embed a Flickr slideshow into WordPress, I learned that this appears to be a problem for many other WordPress users. I tried about ten different methods, looked up help forums both on WordPress and Flickr, and every suggested change did not work, until I came across a page that walks you through creating a gigya shortcode. After creating a photo set on Flickr for the photos in my slideshow, I was able to plug in the information into the link. And, finally, the slideshow was embedded once the information was manually entered.
casey.lovegrove7’s photostream on Flickr.