Hi,
You can have the marker open an infowindow, and have its title link open the poi, using the plugin settings.
To link the poi list directly to the post, you can modify the poi_list.php template. Replace:
<?php echo $poi->get_open_link(); ?>
With:
<?php echo "<a href='" . get_permalink($poi->postid) . "'>" . $poi->title . "</a>";