Authorize.net

-- url of the page with the problem -- : www.ukoalabag.com
-- HikaShop version -- : Essential 2.2.0
-- Joomla version -- : 2.5.13
-- PHP version -- : 5.3.13
-- Browser(s) name and version -- : Firefox 22.0

Is there a way to transfer the order details over to authorize.net payment form? As you can see, at checkout, Hikashop does a very nice job of detailing all the costs and coupons. Then when it's transferred over to Authorize.net, all the details are gone, and the coupon actually looks like it's applying a cost rather than a discount, however the total is correct.

I check the payment plugin for better configuration. Can this be done?