If you got the product id then you can get details of a product by using the following method in magento.

$obj = Mage::getModel('catalog/product');
$_product = $obj->load($product_id); // Enter your Product Id in $product_id
// get  Product's name
echo $_product->getName();
//get product's short description
echo $_product->getShortDescription();
//get Product's Long Description
echo $_product->getDescription();
//get  Product's Regular Price
echo $_product->getPrice();
//get  Product's Special price
echo $_product->getSpecialPrice();
//get Product's Url
echo $_product->getProductUrl();
//get Product's image Url
echo $_product->getImageUrl();