Not that I posted it, but since I was away from home, and from computer access, I didn't get a chance to clean things up until now.
I have deleted all the members who appeared to be posting spam. I will try to figure out some other solution for the future, but right now, what should happen is that people will need to make at least one post that is moderated (ie, will not show up as soon as they post it) before I will ok them to be in the group called "people who can post without moderation." Once someone posts something that is clearly not spam, I will approve them to post without moderation, and things can move forward from there.
Hopefully now that I'm back home, I can help to get things moving on this board again!