template library sending vars to view

[eluser]neosable[/eluser]
I have this:

Code:

$data['hello'] = 'hello';
$this->template->write_view('content', 'user/register', $data);
$this->template->render();

and in the view:

Code:

<h2> New user sign up &lt;? echo $hello ?&gt;</h2>

but there is no displaying hello in the view, what can be the problem ?