Looks like you have a decent grasp of it so far. It's not all that hard to navigate or figure out. Quite simple really. And most people are usually very willing to help out if you have any questions. ^.^ Good luck on your journey.
You can also display your friends by going to "My Mibba", scroll down till you see the side bar where it is labeled "Friends" and under it, click "Top Friends" and add your friends! :)