at http://brainmaps.org/index.php?action=view...tid=54&start=41 and can also be used with the StackVis program at http://brainmaps.org/index.php?p=desktop-apps-stackvis.
With each image only 2000x1000 pixels in size, it's fairly poor resolution, but hopefully better resolution images will be made available.
Check out the thumbnail below. It's a screenshot taken using StackVis. The sections are axial; the brain is up top and the legs are at the bottom of the image stack.