Oops, my fault. Just completely forgot. Here’s a working version of the authors Page template:
https://guff.szub.net/source/page-authors.php
Several points to highlight:
1. This is a Page template, meaning it’s to be assigned through Edit > Pages to a WordPress Page. It is not intended as a modification to the author.php theme template. Just in case somebody doesn’t get it.
2. I’ve commented all through the file, so most of what’s going on should be understandable through my notes. There are a few components you may need to configure (especially the author image stuff), so look through it first and make what changes you need to, especially for formatting and layout.
3. Just about everything should degrade gracefully. For example if the AIM screen name is blank, this line is not displayed, and if there’s no author image, this is passed up.