I believe the problem with the new email subscription widget has been solved. If you have already successfully subscribed, you should receive a notification for any new POSTS that are published. If you’d like to subscribe, please use the subscription fields on the far right column. You will be asked to confirm your request via email prior to being added to the email list for new posts.
COMMENT subscriptions are more flexible — see the new dialogue below the comment field — and can be used to follow particular comment strings or only replies to your particular comment. Please let me know if something is not working.