Ok, my lovelies, Aya is calling out for help once more!

I have finally, finally, finally, decided my layout..
I realize it will be a frame in a table.. the thing is
I don't know how to make the table!! >.<
Here's the description:
It's four cells or whatever the boxes are called.
Two on top, two on the bottom.

__________......
__________......
__________......
__________......
xxxxxxxxxxxx==
xxxxxxxxxxxx==
xxxxxxxxxxxx==
xxxxxxxxxxxx==

the ___'s is where the image goes.

the ....'s is a blank cell, you know, to make the page even

the xxxx's are directly aligned with the ___'s and it' where
the frame goes.

the =='s are directly aligned with the ...'s Thats where the navigation is.

I need to make the table span the whole website... or
maybe there's a different way of doing it??

<table width="100%" border="1"><tr><td width="70%">

_____

</td><td>

.....

</td></tr><tr><td>

xxxxx

</td><td>

=====

</td></tr></table>