I highly recommend you buy the Primal Blueprint book. It will answer those questions and is such an inspirational read. You might also want to check out some of the links under Primal Blueprint 101 under the "About" menu (though, personally, I find that part of the website has too MUCH information to begin with. The book is easier to digest!)
1) I drink coffee
2) The sweet spot is between 50 and 100g, as tmac10 said. I don't track my macronutrients at all any more, and it's been such a relief, after YEARS of obsessing about that kinda thing! I've entered my daily intake a couple of times since starting Primal just out of curiosity, and my carbs seem to be somewhere between 50 and 75, even now I'm in maintenance. I do that simply by avoiding grains/sugar, eating little fruit (and when I do it's berries), and eating primarily low-carb veggies. I do this without thought and feelings of deprivation now.
3) Don't count fat. Just eat it. Eat the right amount of protein (can't remember the numbers--someone else will hopefully know!) and avoid too many carbs, and then fill up on fat.
Zone diet on and off for several years....worked, but too much focus on exact meal composition
Primal since July 2010...skinniest I've ever been and the least stressed about food