validating forms

[eluser]wilfred[/eluser]
I have loaded the following controller but am unable to submit to the database...Please help.
<?php
class Blog2 extends Controller{

function Index()
{
$subjects = array('I want to dance'=>'I want to dance', 'I have a real question'=>'I have a real question');

$this->form
->sel('subject',$subjects)
->add('name')
->add('phone')
->add('email')
->ta('notes')
->sub('submit');

$to = "[email protected]";
$subject = "{subject}";
$message = "Name: {name}\n"
. "Phone: {phone}\n"
. "Email: {email}\n"
. "Notes: {notes}";
$values = array($to,$subject,$message);

$this->form
->onSuccess('send_email',$values,array('{phone}'=>'phone'))
->onSuccess('redirect', 'thispath/success');

$data = array('form'=>$this->form->get());
$this->load->view('my_view_file', $data);
}
}
?>