That's the problem with packing in smoking there's always a reason to go back but just don't go there! It's like a monkey on the shoulder thing. Get out in the fresh air and eat more heathily and the weight won't creep on; however sitting moaning and feeling sorry for ourselves leads to bingeing etc The 'I deserve this cream cake because I haven't smoked for 2 days' isn't on. Your body deserves better than that! Sorry to be hard but I've been there and seen many friends go down that road too.
You'd have to know me to know what a really big deal the weight issue used to be for me. I have body dysmorphia and I just couldn't cope with being fat (as I saw it then). I am much more comfortable with it now but am still trying to lose a little. I won't binge eat or anything like that :)
I know what it feels like to be over your weight and can sympathize with that. I know that you'll have found that not smoking relieves a lot of psycholigical problems but when you start gaining weight you come to the crunch; to smoke or not to smoke, that is the question?
I'm very much behind you daffy in what you're doing as it's not easy but you'll get there. Lots of hugs.