Gap between header and main content...Help!

[jettrue]

So a question or two: I've got this dumb space in Firefox between "Home Log In" and the logo/image section. There was a dumb space below the image too, which I eliminated in both browsers by taking a <br class="clearBoth"> line out of templates\template_default\common\tpl_header.php

There's one more instanceof that code line in tpl_header but removing it does not get rid of the gap.

At anyrate, does having removed <br class="clearBoth"> from one place in this file compromise anything I'm not aware of? Do I need to fix it exactly like in the quote above.... or is just having eliminated it Ok?

You should fix it like the quote above. Because some browsers won't start a new line, and you may have issues with your layout breaking. The code above will get rid of the space.