It was apparent that some issues related to accessibility were addressed as this site, or at least this page, was put together. However, there were still a number of issues that needed to be addressed. The following changes are the ones I made to make the page more accessible:
First up was the obvious ALT text. I added appropriate ALT text for all images that were missing it - particularly the spacer.gif images (to which I gave empty ALT text). I also expanded one image's ALT text to include more information for non-sighted users (or those surfing without images).
Those changes took care of all the Priority 1 issues, and some Priority 2 and 3 issues as well.
More changes that were made included modifying the Submit image to give it more contrast. It was a small white ">" symbol on a yellow background. I made the ">" black, so it is easier to see. It would be even better to remove the image and put a form button in its place.