I've downloaded this plug-in: http://wordpress.org/extend/plugins/flickr-highslide/
I've activated it. Now I'm reading in the rather sparse instructions that come with it. Nowhere does it give us "mere mortals" any firm idea of how to implement it. Apparently you have to know PHP which I scarcely do. It says this: Alternatively you can insert <?php flickr_highslide(); ?> within your blog's templates by going to Admin -> Appearance -> Editor
Yahhh - so, then what??? You must have to paste this in somewhere. I did and got one thumbnail of a strange looking Windows Vista open-page. Nowhere do I see any reference to Flickr or for me to point to the Flickr Gallery I created.
I see lots of others have succesfully implemented this. I'd like to join those ranks but need a little help here...