I can't load a form using its ID

I created a form using webform module.
The form Id is 415. I tried to provide 415 or webform_client_form_415 as parameter and it is saying that it is not existing.

I tried also to create a :

function phptemplate_load_my_node() {
	$output = node_view(415);
	return $output;
}

Inserting the name load_my_node or phptemplate_load_my_node does nothing except saying that those functions are not existing.

I think I missed a big concept here.