Magento: Display related products block on the Onepage checkout

<?php    $cart = Mage::getModel('checkout/cart')->getQuote();    $array_added_product = array();    $total_product= "";    $last_product= "";?>

<?php foreach($cart->getAllItems() as $_item):    $array_added_product[]=$_item->getProductId();?>

<?php endforeach ?>

<?php    //print_r($array_added_product);    $total_product=sizeof($array_added_product);    //echo "<br>".$total_product;    if($total_product > 0){        $last_product=$array_added_product[($total_product-1)];    }?>

<?php    $nProducts = $total_product;    $_product = Mage::getModel('catalog/product')->load($total_product-1);    $ids = array();        while ((count($ids) < 5) && ($nProducts > 0)){            $nProducts --;            $last_product=$array_added_product[($nProducts)];            $_product1 = Mage::getModel('catalog/product')->load($last_product);            if (!$_product1->hasRelatedProductIds()) {                foreach ($_product1->getRelatedProducts() as $product) {                    if (count($ids) < 5) $ids[] = $product->getId();                    else break;                }                $_product->setRelatedProductIds($ids);            }        }?>

<?php $product_per_row=5; //how many product show in a row ?>

<table width="100%" align="center" cellpadding="0" cellspacing="0" style="margin-bottom:10px; border:1px solid #dbdbdb;">
<tr>
<td  width="100%" align="left" valign="middle" colspan="

<?php echo $product_per_row; ?>

">Related Items</td>
</tr>

<?php$product_counter=0;foreach ($_product->getData('related_product_ids') as $r_productid) {$_product = Mage::getModel('catalog/product')->load($r_productid);?>

<?php if(($product_counter%$product_per_row)==0){ ?>

<tr>

<?php } ?>

<td valign="top" style="padding:15px;" width="21%">
<div>
<a href="

<?php echo $_product->getProductUrl() ?>

" style="text-decoration:none;margin-left:30px;text-align:center;">
<img src="<? echo Mage::helper('catalog/image')->init($_product, 'thumbnail')->resize(50, 50); ?>" alt="

<?php echo $this->htmlEscape($_product['name']); ?>

" border="0" width="50" />
</a>
<a href="

<?php echo $_product->getProductUrl() ?>

" style="text-decoration:none; font-size:11px; color:#0076a3; font-weight:bold; text-align:left; ">
<br />

<?php        if (strlen($this->helper('catalog/output')->productAttribute($_product, $_product->getName(), 'name')) > 32) {echo substr($this->helper('catalog/output')->productAttribute($_product, $_product->getName(), 'name'),0,32)."...";}        else echo $this->helper('catalog/output')->productAttribute($_product, $_product->getName(), 'name');        ?>

</a>
<div style="font-size:11px; color:#6b6a6a; font-weight:bold; text-align:left;margin-top:7px;">
List:

<?php $price_mine= (float) $_product->getPrice();        $price_mine= number_format($price_mine,2);        ?>

<?php echo "$". $price_mine; ?>

</div>
<div style="font-size:11px; color:#ff5907; font-weight:bold; text-align:left;">
Our Price:

<?php $final_price= (float) $_product->getFinalPrice();        $final_price= number_format($final_price,2);        ?>

<?php echo "$". $final_price; ?>

</div>
<div style="margin-top:7px; text-align:left; font-size:11px !important;text-decoration:underline;color:#959595;">
<a href="

<?php echo $_product->getProductUrl() ?>

" title="more info">more info</a>
</div>
</div>
</td>

<?php$product_counter++;if(($product_counter%$product_per_row)==0){?>

</tr>

<?php } ?>

<?php } ?>

</table>
</div>
<!-- Cart's Related products block END -->