Geting values from products in Magento

Question

I need help with getting some values out of my code.So I have my configurable product and it is based on a global attribute "size", it has its own associated products which are the same product in different sizes. I need to somehow call a model or something that will give me the associated products and their label for the attribute "size" for example "xxl".
What I did so far was to get all child products. But the this size value is an Int, and there is no size label variable.

Another thing I'd like to add if it helps: the size variable from child products and the value_index from "size" options are the same.

UPDATE

This is the code and need to insert the label in it and to get it displayed in a foreach as a li element

$product1= Mage::getModel('catalog/product')->load($_product->product_id); 
$childProducts = Mage::getModel('catalog/product_type_configurable')
                         ->getUsedProducts(null,$product); 

foreach($childProducts as $child) {

    print_r($child->getId()); 
    print_r($child->getsize()); 

}

Answer 1

    Mage::getModel('catalog/product')->getResource()->getAttribute("size")->getSource()->getOptionText("your_id");