I use old version of Oscommerce and MS1 version of worldpay module. but I update some file to new version. I have set Callback Enabled and Use callback response has been checked. Callback URL set to http://<wpdisplay item="MC_callback"> . if I press CANCEL PURCHASE it can go back to shopping site, but if I press MAKE PAYMENT it can not go back to shopping site, and I can see what I just ordered in shopping site in admin page.
here is the params send to worldpay, would anyone help me to see where is wrong?
<form name="checkout_confirmation" action="https://select.worldpay.com/wcc/purchase" method="post">
<input type="hidden" name="instId" value="66666">
<input type="hidden" name="currency" value="USD">
<input type="hidden" name="desc" value="Purchase from Shirt Tailor of wwchan.com">
<input type="hidden" name="cartId" value="osCsid=0aae87d214b4766d12302a94572d458f">
<input type="hidden" name="amount" value="79.00"><input type="hidden" name="testMode" value="100">
<input type="hidden" name="name" value="john zhao"><input type="hidden" name="address" value="hongkong
new t
hongkong
California">
<input type="hidden" name="postcode" value="23265">
<input type="hidden" name="country" value="">
<input type="hidden" name="tel" value="111111">
<input type="hidden" name="myvar" value="Y">
<input type="hidden" name="fax" value="">
<input type="hidden" name="email" value="
[email protected]">
<input type="hidden" name="lang" value="en">
<input type="hidden" name="MC_callback" value="wwchan.com/catalog/wpcallback.php?language=en">
<input type="hidden" name="MC_oscsid" value="">
<input type="image" src="includes/languages/english/images/buttons/button_confirm_order.gif" border="0" alt="Confirm Order" title=" Confirm Order ">
</form>
thank you !
John
New 
