I don't think there's been specific advertising targeting youth smoking in Australia. I don't recall. The state governments run anti-tobacco advertising on national television and they generally speaking focus on all the smokers and on health effects. If you have a look at the rationalization economics model of smoking, if you want to stop kids from smoking you work through a price mechanism, and as I said, there have been massive increases in excise pricing in Australia over the last eight years. If you want to stop older people from smoking, you emphasize the health aspect of it.
I don't recall there being a specific campaign targeted at youth, but certainly that happens through the schools. The primary and secondary education systems, for example, have a very strong anti-smoking flavour to them in their public health classes.
I've been very surprised to hear that Canadian youth don't know that smoking is bad for them, because Australian youth certainly get that message very clearly from the education system.