taz1,
I have been working on a problem with this for a few days. My first problem is similar to what you posted so I hope this helps. :D
Check on your orders.php in the admin folder for this around line 397 (that is where mine starts):
$orders_query_raw = "select o.orders_id, o.customers_name, o.customers_id, o.payment_method, o.date_purchased, o.last_modified, o.currency, o.currency_value, s.orders_status_name, ot.text as order_total from " . TABLE_ORDERS . " o left join " . TABLE_ORDERS_TOTAL . " ot on (o.orders_id = ot.orders_id), " . TABLE_ORDERS_STATUS . " s where o.customers_id = '" . (int)$cID . "' and o.orders_status = s.orders_status_id and s.language_id = '" . (int)$languages_id . "' and ot.class = 'ot_total' order by $order";
} elseif (isset($HTTP_GET_VARS['status'])) {
$status = tep_db_prepare_input($HTTP_GET_VARS['status']);
$orders_query_raw = "select o.orders_id, o.customers_name, o.payment_method, o.date_purchased, o.last_modified, o.currency, o.currency_value, s.orders_status_name, ot.text as order_total from " . TABLE_ORDERS . " o left join " . TABLE_ORDERS_TOTAL . " ot on (o.orders_id = ot.orders_id), " . TABLE_ORDERS_STATUS . " s where o.orders_status = s.orders_status_id and s.language_id = '" . (int)$languages_id . "' and s.orders_status_id = '" . (int)$status . "' and ot.class = 'ot_total' order by $order";
} else {
$orders_query_raw = "select o.orders_id, o.customers_name, o.payment_method, o.date_purchased, o.last_modified, o.currency, o.currency_value, s.orders_status_name, ot.text as order_total from " . TABLE_ORDERS . " o left join " . TABLE_ORDERS_TOTAL . " ot on (o.orders_id = ot.orders_id), " . TABLE_ORDERS_STATUS . " s where o.orders_status = s.orders_status_id and s.language_id = '" . (int)$languages_id . "' and ot.class = 'ot_total' order by $order";
}
I think I modified the ending of each of the $orders_query_raw statements.
Also, in products attributes I added a Product Option- Version with Option Value Download:v2000
Mine is working fine until I go to the order history and try to download, I get an error page that says page cannot be displayed. currently working on this issue.
I hope this information helps you.! :D