I spent a bit of time updating the website - http://zmail.sourceforge.net - and the result is decent, but not as good as I'd hoped. To be honest, it was really just an experiment in CSS/XHTML for me.
Anyway, some changes include listing team members, gradient background, centered layout, etc.
Unfortunately, I couldn't quite get the look I wanted - you know: rounded corners, drop shadows, etc - the Web 2.0 look. Oh well, maybe next time.