Magento:Get base image in upsell product on product view page

If you want to show the base image in upsell products, instead the small image Please Follow the instructions and create a small extension with the following files.

1. create a file as follow:

app/code/local/Sushant/Upsell/Block/Product/List/Upsell.php

<?php
class Sushant_Upsell_Block_Product_List_Upsell extends Mage_Catalog_Block_Product_List_Upsell
{
    protected function _prepareData()
    {
        $product = Mage::registry('product');
        /* @var $product Mage_Catalog_Model_Product */
        $this->_itemCollection = $product->getUpSellProductCollection()
            ->setPositionOrder()
            ->addStoreFilter()
        ;
        if (Mage::helper('catalog')->isModuleEnabled('Mage_Checkout')) {
            Mage::getResourceSingleton('checkout/cart')->addExcludeProductFilter($this->_itemCollection,
                Mage::getSingleton('checkout/session')->getQuoteId()
            );

            $this->_addProductAttributesAndPrices($this->_itemCollection);
        }
//        Mage::getSingleton('catalog/product_status')->addSaleableFilterToCollection($this->_itemCollection);
        Mage::getSingleton('catalog/product_visibility')->addVisibleInCatalogFilterToCollection($this->_itemCollection);

        if ($this->getItemLimit('upsell') > 0) {
            $this->_itemCollection->setPageSize($this->getItemLimit('upsell'));
        }
		$this->_itemCollection->addAttributeToSelect('image');//get base iamge 
        $this->_itemCollection->load();
		

        /**
         * Updating collection with desired items
         */
        Mage::dispatchEvent('catalog_product_upsell', array(
            'product'       => $product,
            'collection'    => $this->_itemCollection,
            'limit'         => $this->getItemLimit()
        ));

        foreach ($this->_itemCollection as $product) {
            $product->setDoNotUseCategoryId(true);
        }

        return $this;
    }
}

2.app/code/local/Sushant/Upsell/etc/config.xml

<?xml version="1.0" encoding="UTF-8"?>
<config>
	<modules>
		<Sushant_Upsell>
			<version>0.0.1</version>
		</Sushant_Upsell>
	</modules>
	<global>
		<blocks>
			<catalog>
				<rewrite>
					<product_list_upsell>Sushant_Upsell_Block_Product_List_Upsell</product_list_upsell>
				</rewrite>
			</catalog>
		</blocks>
	</global>
</config>

3.Active your module
app/etc/modules/Sushant_Upsell.xml

<?xml version="1.0" encoding="UTF-8"?>
<config>
	<modules>
		<Sushant_Upsell>
			<active>true</active>
			<codePool>local</codePool>
		</Sushant_Upsell>
	</modules>
</config>

4.Finally Open upsell.phtml
app/design/frontend/Your package/Your theme/template/catalog/product/list
And find

<img src="<?php echo $this->helper('catalog/image')->init($_link, 'small_image')->resize(280) ?>" alt="<?php echo $this->escapeHtml($_link->getName()) ?>" />

And replace this line

<img src="<?php echo $this->helper('catalog/image')->init($_link, 'image')->resize(280) ?>" alt="<?php echo $this->escapeHtml($_link->getName()) ?>" />