This would be a very long reply to answer all your questions. Shoot me a PM and I will help you get it filled out!
Decide what class....I would skip the amatuer classes, ect.
They have a 6-9 month puppy class (generally puppy classes are cheaper than regular classes) if you tell me what show I can look the prices up...if you are the breeder, you can also choose Bred By Exhibitor class (also discounted at some shows) otherwise you can go with open or american bred.
The above is what you put in 'dog show class' no variety for sibes, so leave that blank.
You will need the event numbers for the form since you have a blank one....that can be looked up online. Will explain where to find that in a PM