can't figure out correct banner size


If you look at the site, you'll see that the banner is weird - there's a white space on the left that shouldn't be there. We went through a bunch of different sized banners and finally got the left edge of the 'F' in FEW to line up with the left edge of the 'H' in the Home button, so that's fine.

but rather than the way it looks now, the banner should look more like this screenshot I mocked up:
(I can't attach a screenshot to this note for some reason)
So, what should the dimensions of the banner be? Where should the 'F' in FEW be so that it lines up properly with the 'H'?