Want to change title place !!

Hi friends

I want to change the place of my sites name on header ( the blogs name , and “this is just a new word press blog” part ) . I want to take it a little left because of my new wallpaper. I am using Mimbo Pro Theme . I dont know if its forbidden to write site name here but it is http://www.sbsam.org

And I bought and paid money for this mimbo theme

Thank you