My advice regarding the jump start guide would be: don't bother. Also, try not to stay on here too much at first - with it being a forum there is a huge amount of conflicting and confusing information. Just get the PB book, if you haven't already, and stick to this: eat meat, fish, and a massive amount of vegetables (not white potatoes). Eat some fruit but not loads. Make sure each meal has a chunk of protein (meat/eggs etc) and a load of veg. That will keep you going for a good while, during which you can absorb some of the info on here (though I would advise against acting on it for quite some time).
With regard to depression, I found that going Primal did have an effect on mine (a positive one) and I know others who can say the same. One thing I have noticed, however, is that I have to watch that I'm eating tons of veg - hence me repeatedly mentioning this above - or I quickly lose energy and my moods tend to be very low. So learn from my mistake!