Help On Expanding Sides!

Rite, I need this layout coded with an expandable side because i can code it and put in the expandable iframe but then it will crack (i think)

so how do u make the sides expand/stretch, whatever u wanna say!
or could someone do it for me

(its for www.teen-fm.co.uk)

cheers
-Ed
http://img105.imageshack.us/img105/7...kv4showvx8.png

Dont use iframes use divs or tables.

iframes are the best for this site (i think?)

and divs n tables isnt that just for like layout coding and not the content side of things?