MichaelH

<?php
$taxonomy = 'category';
$term_args=array(
  'hide_empty' => false,
  'orderby' => 'name',
  'order' => 'ASC',
);
$allterms = get_terms($taxonomy,$term_args);

if ($allterms) {
  foreach( $allterms as $term ) {
   echo $term->term_id . ' ' .$term->name;
  }
}
?>

What about one of these plugins?

http://wordpress.org/extend/plugins/page-links-to/
http://wordpress.org/extend/plugins/quick-pagepost-redirect-plugin/

Don’t know of something like that.

Check with your host to make sure you don’t have a redirect setup in your hosting ‘control panel’

http://www.google.com/search?q=use+.htaccess+to+password+protect

For the users can’t the normal WordPress Users/Profiles and login could suffice?

Consider downloading and installing Otto’s PHP Code Widget, then something like this code in one of those widgets:

<?php
$args=array(
  'orderby' => 'rand'
  'post_type' => 'post',
  'post_status' => 'publish',
  'posts_per_page' => 1,
  'caller_get_posts'=> 1
);
$my_query = null;
$my_query = new WP_Query($args);
if( $my_query->have_posts() ) {
  while ($my_query->have_posts()) : $my_query->the_post(); ?>
    <p><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></p>
    <?php
    the_content();
  endwhile;
}
wp_reset_query();  // Restore global post data stomped by the_post().
?>

See if this gets you anywhere:
http://wordpress.org/extend/plugins/query-multiple-taxonomies/