Has this issue been resolved yet? I am having the same trouble described by Silvetti and DaveQ. I am still playing around with WP 1.5.2. Is this still an issue with WP 2? Or will simply upgrading solve it?
Anyway, here is what I have:
To get my author links, I have this in my sidebar:
<?php wp_list_authors('exclude_admin=0'); ?>
When I click on an author's name (ex: 'montag'), the url looks like this:
My author.php file includes the following (and I've tried substituting all the other examples in the codex to no avail):
$curauth = get_userdatabylogin($_GET['author_name']);
$curauth = get_userdata($_GET['author']);
I may not have the terminology correct, but it seems as if PHP is not passing the author query. The link is correct, so the list of posts for the author shows, but 'Current Author' doesn't pick up the author name, so the author's nickname and profile do not display.