first of all, relax, you can't do any more than you are doing and stressing about it will only make it worse. when i read your post i could really relate, you see, up until January 14, i was a 2 pack a day Marlboro smoker, plus an ounce to 2 ounces a month of the ganj. as i said, i quit smoking tobacco in january and it aint been easy but the weed made it EASIER for me, not harder. i smoked quite a bit more weed the first month without tobacco but it's evening out now. also, i've never heard of the stuff your talking about but i doubt ANY quit smoking aid will take the desire to smoke away, it just makes it a LITTLE easier to fight it.
also, and i'm surprised your doc didn't have an opinion on this, smoking anything is not good for your lungs, i wish it weren't so but it is.
that being said, it's not any where near as bad for your lungs as tobacco smoke. if your emphysema is really bad and you need to quit smoking all together, you can still eat it or, better yet, vaporize it. vaporization is the safest way to inhale canabinoids.
of course the sticker shock might kill you when you see how much a good vaporizer will cost ya