Hi I need to know a few codes for my blog

Heres my blog
http://tibiafriends.com/pg/profile/pilux
(it’s a kind of myspace for the game Tibia, but whatever)

I would like to know how to change the icons called: Home,profile,photos,videos,settings,friends,groups,blogs
and also change the background of the message board,, I put my codes in the thing called Doodle

I hope that you’ll be able to help me!
thanks and sorry if you find typos in my english