Proper hook_theme and hook_menu settings when using theme_myform

Using as much as I could from the example code, documentation and admin modules, I built a form and need to apply a theme to it. I believe I'm using all of the proper syntax to populate the form, I just can't pass it to the theme_myform function.

I've had problems displaying the page and need the proper settings for hook_theme and hook_menu when outputting a form this way.

Optionally, if I could just display a form without using a table it would solve my problems. Here is the code..

function my_theme() {
  return array(
    'theme_myadmin_form' => array(
      'arguments' => array('form' => NULL),
      'file' => 'myadmin_form.inc',    ),

    'myadmin_form' => array(
      'arguments' => array('form' => NULL),
      'file' => 'myadmin_form.inc',
	),
  );
}

$items['admin/myform'] = array(
      'title' => 'Title',
      'description' => "Desc",
      'page callback' => 'drupal_get_form',
      'page arguments' => array('myadmin_form', NULL),
      'access arguments' => array('administer modules'),
      'file' => 'myform.inc',
  );

function myadmin_form(&$formstate) {
$row = array();
$row[] = $form['option'] = array('#type'=>'hidden','#value' =>'');
$row[] = $form['field1'] = array('#type'=>'text','#value' =>'');
$rows[] = $row;
$header = array(t('Header'));
  
$form['myadmin'] = array('#value' => theme('table', $headers, $rows)); 
return $form;
}

function theme_myadmin_form($form) {
		
	$output=drupal_get_form('myadmin_form');
	
	return $output;	
}