Pole expo--stupid question about workshops

I'm considering going to Pole Expo in Vegas. I must be a moron because I've been on the website for half an hour and can't figure out where to find out the prices of the workshops or even how to book one. I can get to the schedule showing the days and times but I can't figure out how to see if there are spaces available. When I click on the classes it gives a description of the class but I don't see how to book it. Does anybody know what I'm doing wrong? I registered and logged in but I still can't see what I'm looking for.