put rss feed in left colum how?

[Razgo]

i have the left colum hack installed and i am trying to figure out how i can add an rss feed to it?

creating a new hook using global_start and putting

ob_start();
include('/path/to/my/rss.php');
$auction = ob_get_contents();
ob_end_clean();

doesnt seem to work. anyone know how?
thanks