Separate Logo and Primary Menu

I am using Full Frame Pro, I have the Logo and Primary Menu in the same navigation area. This makes the logo very small. Is there a way to place the logo on the upper left area and the menu below the logo and centered? I need more height so that the logo can be shown larger. The website is under construction mode & I do not want my client's unfinished website visible. If you cannot answer this question without viewing the site, then email me so that I can give you the ID and password to view the website.