WP_Query, author_name, and sticky posts

[eryanv]

I have a template which is being used as my front page on WP 2.9.2. In this template I setup my loop with the following code:
{{{ $postresults = new WP_Query();
$postresults->query("author_name=frontpage&post_types=post&post_status=publish");
while($postresults->have_posts()) { $postresults->the_post(); ?>
etc...
}}}
I am not using the "caller_get_posts=1" option, but my sticky posts are still showing up in order with other posts rather than at the beginning. If I remove the "author_name=frontpage" the sticky posts will move back to the first items, however I am stuck with posts by authors I do not want. Using "author=2" results in the same behavior as using "author_name".