Let me illustrate:   

So, when you land on my main domain, http://verabear.net, you see my whole site with the posts, the header, the sidebars and the footer. Like so:   

all elements still shown

Once you click on the post title or the comments link, it will show this:   

Where are my sidebars?

You’ll have to scroll further down to find this:   

There you are!

The Adgitize ad group is supposed to be at the very bottom of my page, so the sidebar starts where it says Subscribe. I have no idea why my blog is behaving this way. I am also not sure when it started or if it’s only doing this for IE8 and the updated Chrome browser.   

Can someone please help me?   

I’m due for a site redesign anyway but I wanted to use this current theme as my base theme and just change backgrounds and stuff. That won’t do if it’s broken this way.   

Any info would be greatly appreciated. Or if you’d rather build me a custom theme for free then that would be super! Haha