sidebar functions and permalink problems

The theme you are using doesn’t call the sidebar on single posts. You’ll have to edit the theme files or find another theme.

If you want to edit the files it looks like you’ll need to make two minor changes to single.php. In ‘wp-content/themes/default/single.php’ change this–<div id="content" class="widecolumn">— to this– <div id="content" class="narrowcolumn">, and add <?php get_sidebar(); ?> just above <?php get_footer(); ?>. Back things up first. Edit with a true text editor and not with a word processor.