Getting floating DIV to stay in the same position no matter what screen resolution

Hi all

I have a transparent floating flash menu (sitting in a floating DIV) which I need to keep in the same position on the screen (in my blue cell) but I do not know how to tell my DIV to do this.
1 way of solving it would be put this entire document into a frames setup, but I would like to find out a way if there is one.

Have a look at what I am talking about here: (please close the 2 adverts that my free hosting site pops up)
http://www.messlah.fcpages.com/menusubshtml.html
I need the menu to remain in that blue column always.

Any help would be great