on the confirm page, you will need to modify the code that passes the item information to paypal to concatenate the options on the name. Find the folloing coed on your confirm page:
$PP_DirectPayment_itemized[0][$nextIndex] = "Name" . strval($cartIndex+1) . "";
$PP_DirectPayment_itemized[1][$nextIndex] = "".$<youreCartObjectName>->DisplayInfo("Name") ."";
where "<youreCartObjectName>" is the name of your eCart object.
assuming the option columns are named "Size and "Color", change the code to:
$PP_DirectPayment_itemized[0][$nextIndex] = "Name" . strval($cartIndex+1) . "";
$PP_DirectPayment_itemized[1][$nextIndex] = "".$<youreCartObjectName>->DisplayInfo("Name") ." Size: ".$<youreCartObjectName>->DisplayInfo("Size")." Color: ".$<youreCartObjectName>->DisplayInfo("Color")."";