$product = Mage::getModel('catalog/product');

        $product->setTypeId('simple');
        $product->setName($name);
        $product->setDescription($description);
        $product->setShortDescription($shortdescription);
        $product->setSku($sku);
        $product->setWeight($weight);
        $product->setStatus(1); // enabled
        $product->setVisibility(1); // catalog, search

        $product->setData('manufacturer',getOptionId('manufacturer',$manufacturer));
        $product->setData('sizematters',getOptionId('sizematters',$size));

        $product->setPrice($price);
        $product->setSpecialPrice($sprice);
        $product->setTaxClassId(2); // taxable goods
        //$product->setMediaGallery(array('images' => array(), 'values' => array()));

        $product->setAttributeSetId(4); // need to look this up

        // assign product to the default website
        //$product->setWebsiteIds(array(Mage::app()->getStore(true)->getWebsite()->getId()));
        $product->setWebsiteIds(array(1));

        $product->save();

        // Check if there is a stock item object
        $stockItem = Mage::getModel('cataloginventory/stock_item')->loadByProduct($product->getId());
        $stockItemData = $stockItem->getData();
        if (empty($stockItemData)) {

            // Create the initial stock item object
            $stockItem->setData('manage_stock',1);
            $stockItem->setData('is_in_stock',1);
            $stockItem->setData('use_config_manage_stock', 0);
            $stockItem->setData('stock_id',1);
            $stockItem->setData('product_id',$product->getId());
            $stockItem->setData('qty',$qty);
            $stockItem->save();

            // Init the object again after it has been saved so we get the full object
            $stockItem = Mage::getModel('cataloginventory/stock_item')->loadByProduct($product->getId());
        }

        $productId = $product->getId();

        // Set the quantity
        $stockItem->setData('qty',$qty);
        $stockItem->save();
        $product->save();