sprry I don't do enough hacking to know but I think Kelbi is right
You can enter just single classes so they have a price for each class individually or a division which is usually 4 classes and then you're in the running for champion. It's usually a bit cheaper to enter division then doing each class individually. For hunters, a division is 2 jumping rounds, an under saddle and a stakes class.
Ok just posted the prize list and also the entry form.
Are you able to send a photo or put one up on your profile of the entry form because I'm not sure what you mean? Or just even type and example of what is says a division is and a class?