Ah, yes, I usually get about 5.8-6% abv with the stout using the recipe you were looking at. However, I now realize that the beer you are trying to brew is actually the winter warmer, which is something different altogether, note that it is a 4.25g batch in terms of volume going into the fermenter. Also, you need a spunding valve.
viewtopic.php?f=3&t=988If you like, you can come by to pick up the grains, I can provide everything except for the vienna and base grain. It's crazy with pre-christmas errands, but sometime tomorrow may work.