I think when ordering your menu buttons you have to think of what people are going to look at most. So, not only do you have to consider first time visitors who will want to know about your philanthropy, and mission and returning visitors who might just want to look at updated pictures and the calander. if you find you have a lot of people e-mailing you about things, then maybe contacts should be first. or if the most people that visit your site are alumnae then maybe that should be first.

and i agree with you about the calander thing. if it's a sorority only event, not everyone needs to know all of the information. which is why my sorority has a calander online just for us and one for the public.