On the confirm page, double check the code order.
In the Server behaviors list, make sure the eCart Store Order Summary and Store Order Details behaviors are before the Universal Email behavior.
If the universal Email behavior is first, select it in the list, then change to code view, the Universal Email code will be highlighted, go to Edit -> Cut. If any blank lines are left between php tags:
Next in the server behavior list, select hte store order details behavior. This will select the store order details code in code view. Place you cursor at the end of the selected code and goto edit -> Paste to paste the UE code back in.