Sidebar.css in WP-theme - I need some help!

I'm editing a WP theme, but I'm having trouble with the sidebars.

(See what I mean)

I'm looking for someone who can help me to get the settings in the sidebar.css just right, 'cos the more I try, the more I mess everything up ...

 

In your style-sidebar.css file, try changing:

To:

 

Thanks - I got rid of the annoying wide column
Could you tell me how to move the 4th sidebar to the right?


I also need to get rid of the white line that is showing at the top of the sidebar.


But there's more...
I'm totally lost...

I want the 'text'-parts (= text widgets) to move down and to the right, but can't seem to find the appropriate piece of code to edit. Whatever I try, I can't get them to move....
Same for the list items. There is way to muche space underneath each list item, and the list image is too far to the right.

If I'm right, for this last problem, I need to edit the values in this part of the code:

.sidebar ul ul li{
	margin: 5px;
	padding: 3px 10px 10px 28px;
	border-bottom: 0px solid #EAD5F4;
	background: url(images/x.gif) no-repeat 13px 10px;
}

Code (markup):

I must admit - I started editing last week, and at that time it all was (more or less) clear to me, but right now, ... the more I look at the code, the more confused I get and the less I get it.