I'm brewing the same recipe (my first brew) from Midwest, the Irish Stout. It comes with a package of Muntons Dry Ale Yeast. Mine has been sitting in a 68-71 degree tub of water for 2.5 weeks and JUST NOW the airlock started bubbling (although I smelled "fermentation" for the first few days when I had the blowoff tube in the bucket lid). Just be patient man, I'm learning there can be some crazy nuances with brewing beer. Just let it sit, don't mess with it. If it sucks now (doesn't ferment, gets infected, etc) it'll suck at three weeks too. If its good now and you mess with it, it may suck in three weeks (you may infect it, you may over pitch, etc)....so either way I'd just wait.