Hey Mooshi. Welcome and good job doing some reading/watching. My two cents is to hit the Wiki pretty hard. Some advocate reading all of it at first, but my brain doesn't work that way. What I did was try to figure it out on my own and hit the Wiki when I got stuck.

What you need first is an all accept macro or a BIG BUTTON as I call it. Basically when my toons all log on I push a button on my main that is a macro inviting everyone to the group and setting loot to FFA. From here one of a few things can happen; 1) you can use an addon like Multiboxer or Jamba and set them to auto accept invites from your brain or 2) you just can have an accept all macro bound to the same key on all of your clones. This button will accept group invites, release spirit, accept rezes and accept shared quests.

Once you get a good feel for things I strongly recommend getting an addon like Jamba. It let's you coordinate several repeated tasks (like all taking the same FP) and helps keep your group together. I know you may have wanted some clear cut answers but the best thing to do is to learn how to fish for the info on this site yourself. It will make you a lot more self-sufficient and will help you appreciate the hard work the guys who have been doing this for years have done.