Progress
Ok, I've made a bit of progress. now the size shows up on the customer's email receipt, but not on my merchant receipt. here's the code i added. maybe i missed something?
$nextIndex = count($AuthNet_itemized[0]);
$AuthNet_itemized[0][$nextIndex] = "ID";
$AuthNet_itemized[1][$nextIndex] = "".$OandACart->DisplayInfo("ID") ."";
$nextIndex = count($AuthNet_itemized[0]);
$AuthNet_itemized[0][$nextIndex] = "Name";
$AuthNet_itemized[1][$nextIndex] = "".$OandACart->DisplayInfo("Name") ."";
$AuthNet_itemized[0][$nextIndex] = "Size";
$AuthNet_itemized[1][$nextIndex] = "".$OandACart->DisplayInfo("Size") ."";
$nextIndex = count($AuthNet_itemized[0]);
$AuthNet_itemized[0][$nextIndex] = "Description";
$AuthNet_itemized[1][$nextIndex] = "".$OandACart->DisplayInfo("Description") ."";
$nextIndex = count($AuthNet_itemized[0]);
$AuthNet_itemized[0][$nextIndex] = "Quantity";
$AuthNet_itemized[1][$nextIndex] = "".$OandACart->DisplayInfo("Quantity") ."";
$nextIndex = count($AuthNet_itemized[0]);
$AuthNet_itemized[0][$nextIndex] = "Price";
$AuthNet_itemized[1][$nextIndex] = "".$OandACart->DisplayInfo("Price") ."";
$nextIndex = count($AuthNet_itemized[0]);
$AuthNet_itemized[0][$nextIndex] = "Taxable";
$AuthNet_itemized[1][$nextIndex] = "YES";