这应该做您需要做的事情:

This oughtta do what you need:

<?php

$categoryid = 12;

$category = Mage::getModel('catalog/category');
$category->load($categoryid);
$collection = $category->getProductCollection();
$collection->addAttributeToSelect('*');

foreach ($collection as $_product) { ?>

<a href="<?php echo $_product->getProductUrl() ?>"><img src="<?php echo $this->helper('catalog/image')->init($_product, 'small_image')->resize(200); ?>" width="200" height="200" alt="" /></a> <a href="<?php echo $_product->getProductUrl(); ?>"><?php echo $_product->getName(); ?></a>

<?php } ?>