Replacing w/ images.

Since there was cunfusion, I decided to use the Component stlye on LiveJournal and not GreatestJournal. With that said I have a couple questions.

How do you replace the security icons with your own image?
How do you replace Current Mood: with an image?
How do you replace Current Music: with an image?


Also I dont know if this question is allowed (if not tell me and I will edit my entry), but do you guys know of any layout communities on LJ that offer Component layouts?