My Web Page is Borken!

I'm so lost when it comes to html. I know just enough to screw things up.

Example: My lovely sidebar to the left. It seems to have disappeared, but really if you scroll down you'll find it at the bottom of the page. Don't ask me how to fix it. I was using blogger/blogspots "simple" layout editor to add a little this and rearrange a little that.

This is why I'll never be a computer programmer, let alone a web designer.
I'm u8er lee7! (That was my poor attempt at "leet speak", which is probably also wrong...