Sidebar is next to entry on single page, but…

I am adding a new theme to my blog. I’m using Kubrick and I got the sidebar to sit next to the entry, but after the entry ends, the sidebar info flows on down below the entry. I haven’t seen this before, and I don’t see it on the Support boards.

You can see this theme at http://kissmestace.com and the link to the theme is “vector shoes” right at the top of the sidebar.

Thank you.

EDIT: Okay, I still had my old template tag “menu” in there. That caused another problem, too.