WordPress MU

I would like to add an additional sidebar to Kubrick.

The sequence will be as follows:

sidebar - content - sidebar

I've been able to find a tutorial on how to create a content-sidebar-sidebar sequence. But this isn't what I am looking for.

Any help or advice on how to do this?

Thank you, Robert

I;d search for a 3 column Kubrick theme, because I'm pretty sure this has been done a few times before.

Thanks Andrea. But, I think I'm close!
I've managed to create a dynamic sidebar but, it forces the main content under it.

http://www2.nya.org/nya-now/

How do I make the main content start at the top?

Many thanks for your help.

Robert

OK - So, I found a 3 column kubrick theme that is really helping me out.

http://www.transformationpowertools.com/wordpress/wp-default-theme-3-columns

Thanks!

Robert