seeing email format constants within success emails WorldPay only

I have zencart send a copy of orders to me, and I noticed that this started to happen from WorldPay orders only
EMAIL_THANKS_FOR_SHOPPING
EMAIL_DETAILS_FOLLOW
EMAIL_SEPARATOR
EMAIL_TEXT_ORDER_NUMBER 1100
EMAIL_TEXT_DATE_ORDERED Monday 25 September ec. etc.

Not sure what I did to cause this, however I did make some changes to try and get google analytics to work, but this was a failure, and I am pretty sure I have changed the files back to what they should be ... strangely though, orders coming through from paypal are formatted correctly, does anyone have any idea which files might be the problem here ... I have already scanned checkout_process.php but cannot see a problem in this file ... anything else I might check ?

I fixed it, I had to re-upload the whole worldpay 'includes' folder again, this fixed it, so I guess I messed up one of the files somehow ! :blink:

Thanks for the update on the fix to the mysterious CONSTANTS problem. :D