Table Problem Urgent

Hey guys, this is really frustrating me now.

I want a table that is 100% in height, which I have managed fine.

I then want one row at the top to be 150px

and the foot row to be 75px

and the row in the middle to be what ever height is left over.

But it just won’t work, I had it working on another website, I tried copying the code into my new one but it just won’t work.

here is a link to the page: http://www.purplehaus.com/ram/index.html

If someone could take a look and help me out that would be great as I promised this guy his site wouldbe ready ages ago.

Ta

just define the table as 100% then define your row tags in pxls.