Option Sidebar Position

I am using Adventurous Pro. I have been struggling with my Gallery pages. I have galleries inserted into my page using the three column sidebar template and want to have a sidebar to the right in order to navigate to different galleries. The sidebar is placed below all the main content. Is there a way to use this layout but have the sidebar at the top aligned with the galleries but without using the default template (I don't like the appearance of the galleries). I only want this menu to appear on the galleries and not on other pages.