Like others I've been running in to the same issues the rest of you have, but with a little digging it's not hard to figure out how this plugin works.
It actually works pretty well! Thanks to the person who suggested inserting a - before the first item in dropdown combos.
I thought I'd show folks what I've done with it so far and let you know that this website (and registration forms) is going live tomorrow 12/1/2010!
The forms are under the "Spring Fever" tab right now.
Eventually I'd like to hook this up to a database to capture the information, but for now we are sending emails to the people who need to know the info.
If you're in the area and want to attend a miniature gaming convention come on by! :)