It's too tall, I'm on 1280*1024 and you're scrolling down to see all the images in the grid, and the text on the bottom of the front page; so I'd change the grid size for the gallery, so that it fits in the screen.
Throw in lightbox for the fullsize previews, you're on classic asp so that's just a simple change to the string on the data repeater.
http://www.huddletogether.com/projects/lightbox2/your pager control doesn't work, as in every page shows 4 pages
you might want to look into search engine optimisation, as your header is an image, so nothing will currently pick that up.
The photos look good though
