Twenty ten theme header 4 changes, I need help

I know little html and css. So I need help to change the theme.
Please see the pic below.
https://i55.tinypic.com/23mpg8z.jpg

I need 4 changes.
1. Remove the white bar in the top
2. Remove the black bar just above the header pic.
3. Move the tagline to below of header.
4. Remove feed button.

Can someone help me out here?! thank you in advance.