Blog Plugin

Hi,

Can anyone help in regarding this, I need to get the latest Blog Post per Category is it possible using this ? I'm using this code to get the blog post per category but I just need the latest post per category

echo '<h4>Community Update '.perch_blog_category($theCategory, true).'</h4>';
                            echo '<div class="well">';
                            $theVar = perch_blog_custom(array(
                                    'category'   => $theCategory,
                                    'template'   => $template,
                                    'count'      => $posts_per_page,
                                    'sort'       => $sort_by,
                                    'sort-order' => $sort_order,
                                    ));
                            $posts_displayed = true;