In the most basic set up, my /blog/ directory runs Serendipity fine. Why shouldn't this text.php file run in the same directory also?

<?
$_REQUEST['page'] = 'blog';
ob_start();
require("index.php");
$blog_data = ob_get_contents();
ob_end_clean();
?>
At some point I'd like to run this out of our ...

What's the best way to change the install dir of Serendipity? First at the blog admin page then move the directories or move the package then log in to admin and update paths?

I'd like to use the embed option after this but the documentation is rough. What are the bare minimums required? Set embed ...