Anyway, since I am pulling code out that I may want later, I will insert it here for my own benefit (or yours) at a future date:
Somewhere in your webpage, or in a wordpress widget that accepts HTML, enter a DIV with a name you give for your flickrshow. You will need this variable-name later:
<div id="yourFlickrShowName"> <p>If nothing appears here, something has gone wrong!</p> </div>
Now, put the following script call in your footer somewhere, just before your “” tag. Be careful actual quotes are used in your code when you cut/paste this (because WordPress sometimes changes them to look prettier).