change header and navigation

hi there,

I need some shifting my header and navigation around. I know this question is asked quite alot but i cant seem to find the answer in any of the forums that applies to my theme.

I am using Magatheme which i have customized so far, and this is my url:
http://www.thevintageshowroom.com/blog/

I have two challenges…
ONE:
I want to lose the text header above the black navigation bar and place a logo/banner below the navigation bar. I would like to be able to keep the space above the nav bar in case i want to add a banner there at a later date.
TWO:
I want to change the positions of the tags link and the post info (author, published, category, comments) to directly under the post title, all in the same font.

I will be eternally grateful for any assistance with helping me resolve this.

Thanks.