I suspect people haven't answered because they haven't seen the thread... most of this appeared overnight (UK time), and with the photo competition results being posted, I suspect they are most people's first port of call, for a quick check before rushing off to work!).
If it's just a runny nose with a little cough, I wouldn't worry - Honey has had a cold before and she certainly didn't suffer from it at all. If the cough is persistent and hacking, it could be Kennel Cough.... try a little children's Benylin or Manuka Honey to relieve the symptoms, and make sure he doesn't meet any other dogs, as it is highly infectious. As long as he is eating and drinking, there's really not a lot else to do... if he stops eating and drinking definately get him to the vets, as puppy's can go downhill quickly when they stop taking in nutrients.
I would also do as coralee advises and stop giving milk - many dogs do not tolerate milk well, and these symptoms could simply be a sign of lactose intolerance...
Stick with water to drink, and simple easily digested food to eat (eggs can be very good for this...). I'm not sure what exactly you are feeding her, as you seem to mention lots of different foods... her normal puppy food would also be fine.