Could you please find in index.php, around line 275-279
PHP Code:
<?php
// END of: If there are any posts
// If there are no posts:
else :
?>
and add this right before it:
PHP Code:
<div class="navigation-bottom">
<div class="older"><?php next_posts_link('« Older Entries') ?></div>
<div class="newer"><?php previous_posts_link('Newer Entries »') ?></div>
<div style="clear:both"></div>
</div>
so that you get
PHP Code:
<div class="navigation-bottom">
<div class="older"><?php next_posts_link('« Older Entries') ?></div>
<div class="newer"><?php previous_posts_link('Newer Entries »') ?></div>
<div style="clear:both"></div>
</div>
<?php
// END of: If there are any posts
// If there are no posts:
else :
?>
... so I can see whether the basic next/previous links would work. This should display a second set of next/previous links at the bottom and if those work then the theme might be doing something wrong with the custom next/previous links.