I’d like to know this too. If I find out I’ll come back and post here.
http://wordpress.org/support/topic/34346 (talks about adding stuff, very short)
http://wordpress.org/support/topic/20609 (talks about location of the file)
Found some others too. I’m going to try to develop my own expanded calendar, will let you know how it turns out.
I made my own plugin which goes back 6 months, but I’m not ready to release it yet. I don’t know enough about WP to support users if they have problems applying or using it.
Hello. Thanks for the advice. How’s your plugin going?
I’m still trying to figure out how to remove the links to previous months. I think it has something to do with this bit of code (Correct me if I’m wrong):
// Get the next and previous month and year with at least one post
$previous = $wpdb->get_row(“SELECT DISTINCT MONTH(post_date) AS month, YEAR(post_date) AS year
FROM $wpdb->posts
WHERE post_date < ‘$thisyear-$thismonth-01’
AND post_status = ‘publish’
ORDER BY post_date DESC
LIMIT 1″);
$next = $wpdb->get_row(“SELECT DISTINCT MONTH(post_date) AS month, YEAR(post_date) AS year
FROM $wpdb->posts
WHERE post_date > ‘$thisyear-$thismonth-01’
AND MONTH( post_date ) != MONTH( ‘$thisyear-$thismonth-01’ )
AND post_status = ‘publish’
ORDER BY post_date ASC
LIMIT 1″);
Though I don’t know where to start messing around with it. It’s under the wp-includes\template-functions-general.php file.