Custom form registration

Ok. Here’s my plugin code: file

Here’s my code (functions.php):

function modify_contact_methods($profile_fields) {
// Add new fields
$profile_fields[’empresa’] = ‘Empresa’;
$profile_fields[‘AreaActividade’] = ‘Área Actividade’;
$profile_fields[‘NContribuinte’] = ‘Nº Contribuinte’;
$profile_fields[‘Contato’] = ‘Contacto’;
$profile_fields[‘Funcao’] = ‘Função’;
$profile_fields[‘Morada’] = ‘Morada’;
$profile_fields[‘CodigoPostal’] = ‘Código Postal’;
$profile_fields[‘Localidade’] = ‘Localidade’;
$profile_fields[‘Zona’] = ‘Zona’;
$profile_fields[‘Pais’] = ‘País’;
$profile_fields[‘Telefone’] = ‘Telefone’;
$profile_fields[‘Fax’] = ‘Fax’;
$profile_fields[‘Telemovel’] = ‘Telemóvel’;

// Remove old fields
unset($profile_fields[‘aim’]);

return $profile_fields;
}
add_filter(‘user_contactmethods’, ‘modify_contact_methods’);

Anyone can help?