Theres some great info given here to get you started, any kind of particular question or issue you find, someone here probably has the answer.
I would also recommend joining an archery club or start going to an indoor range if possible. Pretty hard to lose arrows at an indoor range and there is going to be someone on hand to point you in the right direction. Its a good place to meet a new friend or two also.
As far as getting permission to hunt places, Mallard has a good little script there. Offer to help out with some chores or projects, and not just that day, if you get permission always offer to help. Also, make sure to let them know who is going to be with you. They may not want 5 guys wandering around the place. If 'you' get permission, its usually not good to show up with a truck full of buddies to hunt there. Never hurts to leave a venison steak or two for the land owner and send a Christmas card.
Good Luck