displaying comments in reverse chronological order

Thanks 4k the plugin you suggested did the job ok.

Now, coming to my point 1. , do you have any ideas on how to hack WP to have the comments visible directly on the homepage below the post?
In index.php I tried to replace <?php comments_popup_link(‘No Comments »’, ‘1 Comment »’, ‘% Comments »’); ?> with something like <?php include ‘comments.php’; ?>
but nothing happens.