I have completely rewritten my original sitemap generator script and turned it into a true plugin for WordPress. It also has many new options which are configurable through the admin panel.
This is not an XML sitemap, but rather a true sitemap generator which lists all pages and posts (sorted by category) on either a single page, or multiple pages (depending on the number of items, and your configuration).
Some of the options include the ability to show/hide future/draft posts, show/hide comment counts, select from two methods of page navigation (for multi-page sitemaps), and more. There is even an option to automatically display a link to your XML sitemap (if you are using a plugin to generate one).
To download and/or get more information, visit the plugin's page:
To see the plugin in action: