I am also having troubles getting the tag shortcode to work.
[flickr-gallery mode="tag" tags="foo" tag_mode="all"]
I'm assuming we replace "foo" with whatever tag we want to use, but I'm not having any luck.
For example, I've tried this:
[flickr-gallery mode="tag" tags="logo" tag_mode="all"]
to no avail.
Here's what I'm trying to access: http://www.flickr.com/photos/stefzehn/tags/logo/
Thoughts? I'm trying to get this up for a potential employer to review, so I'm trying to get this resolved asap. Aren't all technical problems like that, lol?