ok, on the checkout page, the code that sends the name to paypal will look like this:
$WA_PP_ECO_Do_itemized[0][$nextIndex] = "Name" . strval($cartIndex+1) . "";
$WA_PP_ECO_Do_itemized[1][$nextIndex] = "".$eCart1->DisplayInfo("Name") ."";
edit that to concatenate the description:
$WA_PP_ECO_Do_itemized[0][$nextIndex] = "Name" . strval($cartIndex+1) . "";
$WA_PP_ECO_Do_itemized[1][$nextIndex] = "".$eCart1->DisplayInfo("Name") ." Desc: ".$eCart1->DisplayInfo("Description")."" ;