Help with sidebar in IE6

The site I’m working on, https://www.graciebarraescondido.com , is all set up and finished.

It works fine in Safari, Firefox, and even IE7.

However, when you view it in IE6, the sidebar gets pushed down to the bottom of the main body content, but still above the footer.

Can anybody please give me a tip on how to fix this issue?

**Please don’t delete this this time, I really need help on this**