Integrating WordPress in non-WordPress Page

hi ??

Im trying to integrate my portal with wordpress
but i have a problem :

how can i echo my content in boxes like posts?

Picture Here:
https://www.4shared.com/download/LN54dlRZ/1_online.png?tsid=20131114-054747-2468874b

code example:

<?php
require('../wp-blog-header.php');
if(is_user_logged_in())
{
	get_header();
	get_sidebar();
	?>

	<form method="POST" action="courses-management-sc.php">
	<input type="text" name="course_name" />
	<input type="submit" />
	</form>

	<?php
	$res = $wpdb->get_results("SELECT * FROM sina_courses", ARRAY_A);
	foreach($res as $value){
		echo "</br>*".$value['course_name'];
	}

	echo("</br>you are loginned </br>");
	echo("your user id is: ".$user_ID."</br>");
	echo("your username is : ".$user_login."</br>");

	get_footer();
}
else
{
	echo("plz login");
}
?>

i found get_header & get_footer & get_sidebar
but didnt find anything for echoing content in boxes…
{for example in E107 (e107.org) we have : $ns->tablerender($title, $content); }

i can echo divisions with post styles
but i want to know is there any other way?

i searched forum much and didnt find my answer..
im sorry if this is a repeating topic, and for my awful English ??