Magento – Configurable Products, get children, get children’s attributes

//Clear cache first!
Mage::getModel('catalog/product_type_configurable')-> getProduct($product)->unsetData('_cache_instance_products');
$_product = Mage::getModel('catalog/product')->load(5525);
$childProducts = Mage::getModel('catalog/product_type_configurable')->getUsedProducts(null, $product);