pints1ze

I just recently ran into this problem, but didn’t want to find every occurance of the_author() in my theme. I put together a filter that hooks into the_author() in my themes functions.php file that did the trick… It could probably be cleaned up quite a bit, but hopefully it helps:

function use_coauthors() {
	$authors = get_coauthors();
	$numauthors = count($authors);
	$result = '';
	foreach($authors as $author){
		$result .= $author->display_name;
		if ($numauthors > 2) {
			$result .= ', ';
		} elseif ($numauthors == 2) {
			$result .= ' and ';
		} else {
			$result .= '';
		}
		$numauthors--;
	}
	return $result;
}
if ( function_exists('get_coauthors') )
	add_filter('the_author','use_coauthors');