Gravatar is just the name of the class I was using in Newscast, now since I use the Author plugin I kept the class that same name as it was used for both comments and authors.
What is important is to show the author's picture instead of just a name imo
For multiple authors you can use the co-author plug in http://wordpress.org/extend/plugins/co-authors/ and use this code
I prefer co-authors instead of the latest ajax version. This code will iterate through all the authors of the post and display them one after the other
<div class="author-info">
<h3>
<?php _e('About the author(s)'); ?>
</h3>
<?php
$description = get_the_author_description();
if($description != '')
{
echo $description;
}
else
{
_e('The author didnt add any Information to his profile yet');
}
?>
<?php
$i = new CoAuthorsIterator();
print $i->count() == 1 ? 'Author: ' : 'Authors: ';
$i->iterate();
the_author(); echo"<br/><br/><br/>";
while($i->iterate()){
print $i->is_last() ? ' ' : ', ';
?>
</div><div class="gravatar">
<?php
$author_email = get_the_author_email();
userphoto_the_author_thumbnail();
the_author_posts_link();
?>
</div> <div class="author-info"><?php
$description = get_the_author_description();echo $description; echo "<br>";
}
?>
</div>
This will basically enable to have:
Photo: bio of author 1
Photo: bio of author 2
this should be enough for you to play around with the code and layout and change it to your needs