get fields

Hi
I am trying to add a record directly into mailpoet, I am using this bit of code in the add edit php pages of the plugin

$data_subscriber = array(
	'user' => array(
		'email' => $column->email,
		'firstname' => $column->first_name,
		'lastname' => '',
	),
	'user_list' => array(
		'list_ids' => $list_ids
	),
);

Does anyone know how I can get the email and the name from the record being edited or added ?

thanks in advance