1) they have classes for pupies to be entered 6 months/up to a year /
18 months, next it's adult classes male and female, vetern for over 8 years I don't think there is an upper limit any age over 6 months can be shown.
2) They have training classes "ring craft" Where very young dogs start to learn how to stand ect
3) just basic, enough to get by
4) tell the breeder you would like to show, the puppy will be about 4 months old before they know it's got a reasonable chance.
I did not intend to buy a show dog, the puppies where just under 4 months
when we asked about classes meaning basic training a good breeder of show dogs asked us to take the puppies to see her.
It was a misunderstanding she told us the night and time of the classes when we went we discoverd she had sent us to ring craft. She had noticed Paddy was show quality. :D