Div Tags: Adding a sidebar broke my page

[Snot]

I was trying to add a div sidebar to my page and it worked great on the top half but the bottom half move over.

Can you see what I am missing its got to be something simple.

http://www.tarantuladatabase.com

oh well never mind its all jacked up now that I upload it. Just looks different in DreamWeaver. This is how it should look http://www.tarantuladatabase.com/look.JPG

Any ideas?

[Snot]

EDIT

LOL it might help if I upload my css file.

Do you mind looking again hehe the sidebar falls through the bottom of the page instead of pushing it down.

Any ideas?