Hi!I would recommend adding some textual content to the home page and designing a graphic title or logo to dress up the site.
Purely my personal opinion, but I think the site would look classier with a solid background.
As far as navigation, some of your inside pages are lacking the main level navigation. I would include it on all pages.
Under the PTA links, I was surprised at what I saw under the History link. It had nothing to do with the PTA or school? Perhaps it would be best under a different heading?
Some of your graphics are showing up on white squares. If you would make them transparent in your graphics program, that white area would disappear.
Best wishes,

Sandy
------------------
Stu Reilly Design
Allegheny Web
Dreamweaver Sites