Kim, unfortunately once the cancer is in the lungs chemo usually doesn't do much regardless of tumor type.  I think that your best bet is Pred or an NSAID, since there are multiple nodules.  If it was just 1 or 2 nodules then the metronomic protocol might be worthwhile.  I would also look into the Artemisinin , since it might slow things down.  I wouldn't expect the Neoplasene to do much at this point but I have only used that once. I guess I don't think the Artemisinin would hurt but the Neoplasene has the potential to make him feel sick. 

I will send an Email to OSU to try to get a dose but a lot of university staff are off for winter break right now.  There is a yahoo group that is dedicated to use of Artemisinin in dogs but the doses are anecdotal and results are hard to interpret.

If he still feels good then that is the most important thing, so you have some time left to enjoy each other.  Cancer is a horrible disease to deal with but at least we have the ability to say goodbye to our dogs.  Some other diseases take them so suddenly that we miss out on that final farewell.

Pam and Tazzie