OK backgrounds you hit the red "Style Editor" that's to the right of the "Your Profile" on the top bar thingy. Then you hit backgrounds that should be right under it then hit browse and you find a picture on your computer you like ^_^. If you don't have a good one you like on your computer I suggest getting one obviously lol!
Now to the adding friends it's alot simpler You go to their profile and in the section that show the avatar and stats down under that should be "request as a friend" and you click that and wait for the person to accept it ^_^.
Hope that answered all your questions! LOL I'm listening to your video it's a catchy song!

You go into FRR then multiplayer near the bottom of the screen and then challeng someone..I Think that's how it's done my FFR crashed when I went to test it, so that's the best answer I can give at the moment LOL ^_^.

Oh well i guess we can play later ^^

Grrr,we never got to play
=(

When you go to play ffr, you'll notice three circles at the bottom screen, one of them will be multiplayer, click on it.

Hey Cool Sasuke Avatar If you need any help let me know and I'll help you out if I can ^_^.

Okies, i'll meet you there in a few minutes
=3

Yay for a new friend! Would you like to ploay multiplayer with me?

Would you mind if i added you as a friend?
:3

Hello ^^