After posting above I found this on the forum.
showthread.php?t=22077&highlight=detailsku
Tried binding the DetailSKU column in the ordersdetail table with
<?php echo $eCart1->DisplayInfo("SKU"); ?> but still doesnt display the product SKU in the customer order details page.
Attached is the confirm page.
I presume the adding of the product description is a variation of this procedure once I get it working correctly.