alignment issues within header

I am trying to add some things to my header, I wanted a home button on the right, then an ad, then on the right I wanted a database link I am using. I want them to all be in a horizontal row along the top which it starts out as until I try and add in my ad code, then it stacks them all up vertically instead of side by side horizontally. Any help with the proper html codes I need to make this work would be much appreciated, thanks in advance. https://www.candlelitlife.com