I have three questions.

1. How do you put an image at the top of your LJ?(generator)

2. How do you get the navigation links in a table above your journal entries?

3. How do you change the scrollbar colors?

http://www.lissaexplains.com/forum/showthread.php?t=42978

It will all be in the links in those posts if you can spare a few minutes to take a quick look around.

http://livejournal.com/tools/memories.bml?user=everything_lj