Found lots of dates with "D" class on ExpertFlyer, however niether Cheaptickets nor Orbitz bring up ANY fares when searching for Business on Alitalia. When putting this on any airline, just gets really high fares on combination of airlines.....
Don't think this will be around much longer...
Also for those getting seated in economy on your YYZ-NYC/IAD/BOS portions are most likely flying on an RJ with no J section.... I pulled up some fares that had E75 on the EWR-YYZ on AC with seats in business...
-mike