ok, i take it all back. as the page does NOT return an error (as far as i can tell), and @frank18 says the script is included in the top, i can safely say that the initiation script is included. storeya does seem to have integrated a number of carts at least according to their website.

i would modify the storeya_feed.php script to actually see what the sql statement is:

PHP Code:

$prdqry
mysql_query("select ".DB_PREFIX."products.products_id,products_price,products_price_sorter,products_ image,products_name,products_description,products_url from ".DB_PREFIX."products,".DB_PREFIX."products_description where ".DB_PREFIX."products.products_status='1' and ".DB_PREFIX."products.products_id=".DB_PREFIX."products_description.products _id and ".DB_PREFIX."products_description.language_id='".$language_id."' order by ".DB_PREFIX."products.products_id ");

// add these 2 lines:

echo "select " DB_PREFIX "products.products_id,products_price,products_price_sorter,products_ image,products_name,products_description,products_url from " DB_PREFIX "products," DB_PREFIX "products_description where " DB_PREFIX "products.products_status='1' and " DB_PREFIX "products.products_id=" DB_PREFIX "products_description.products _id and " DB_PREFIX "products_description.language_id='" $language_id "' order by " DB_PREFIX "products.products_id ";

die(
__FILE__ ':' __LINE__); 
then go back here:

http://artos.dk/zencart/storeya_feed.php

and post the sql statement here.

good luck!