Looked great... But then there was a huge horizontal scrollbar, even though no content was outside of it. (the login bar was properly right aligned on the visible area of the browser window)
So I started removing changes one by one to make the horizontal scrollbar go away. It never did, even getting back to the same look file the main site's running now, and the main site doesn't have those scrollbars. Thinking MacIE was confused, I closed and restarted the app. Same dumb behavior.
I'm stumped, and I refuse to waste more time on this. If somebody sends me a fully tested patch, I'll try it again. I am starting to think this browser is just the biggest piece of shit ever made. Unfortunately, it's standard with OS X, so we have to assume 27 people out there are using it.