Sort Filter - Resolved

maybe you can do what you want with a custom block.
the content of the block is following:

<?php
return _simplenews_subscription_manager();
?>

Title something like "Newsletters"

Jim, thanks for the feedback.

the addition of a block that would list all of a site's newsletters with check boxes for selection

Simplenews was rewritten with this question in mind, and the solution has been given by Tobias. So, I'll consider that as 'problem solved' (and so I changed the title of this issue). Small change could be that _simplenews_subscription_manager() takes an argument which sets (or disables) the text underneath the from.

a listing by email address of newsletters subscribed by that person

I considered listing the newsletters to which an address is subscribed in the 'list subscriptions' tab, as an extra column in the table. However, the table would become really big, and you would lose the overview. Also, it just wouldn't look nice and clean anymore: some rows would be much higher than others (if a lot of newsletters have to be listed), with a lot of text in it. I actually tried it during development, and I just got lost in the information: it wasn't user friendly anymore.
Therefore, I decided to divide the info in the subscription list into primary and secondary information, and I consider the newsletters subscribed to as secondary. That's why you can only find it by clicking "edit". Or, you can go to administer->users->user->edit->newsletters, but that's a long way.

a report page could be generated listing the email addresses that are subscribed to each newsletter

This one is also on my list. In the 'list subscriptions' tab, I'm going to provide a drop-down list, where you can select 'show all / newsletter 1 / newsletter 2 / ...'.

Small change could be that _simplenews_subscription_manager() takes an argument which sets (or disables) the text underneath the from.

would be fine :D

There are sort filters now for "sent items", "drafts", and "subscriptions". So e-mail addresses subscribed to a specific newsletter can be filtered out now.

Didn't do the extra argument yet for _simplenews_subscription_manager(), but I will.

Under "Subscriptions" you have "list", "import" and "export". The dropdown list can be found under the list-tab, it is not in an extra tab.

How did you download simplenews? If you download it from the download section on drupal.org, you have to be patient: it can take up to a day before the tarball with the latest changes is generated. If you want the latest versions immediately, you have to do a cvs checkout. (or get it from http://cvs.drupal.org, you'll find simplenews in contributions->modules->simplenews)

If you'd use cvs.drupal.org and you don't know cvs: be careful to download the correct version. In your case this is the latest version in the DRUPAL-4-6 branch.

Jim, I really think you are not using the latest version.

I understand you are using Drupal 4-6, so you should use simplenews.module,v 1.1.2.8 2005/08/18 23:01:41 driesk.
In this version, you'll find the following code, which generates the filter.

function simplenews_admin_list() {
list($names, $queries) = array_values(simplenews_set_filter('simplenews_subscriptions_filter',FALSE));
$form = form_select(t('Show subscriptions to'), 'filter', $_SESSION['simplenews_subscriptions_filter'], $names);
$form .= form_submit(t('Filter'));
$output = '<div class="container-inline">'. form($form) .'</div>';

The attachment shows what I have (and what you should have).

Closed because the automatic close feature in project module is broken, and the issue list is becoming cluttered.