Same process, but I use Speed sew for gluing, though I don't think it's available in the US. Detachol is the best for removing. At least with my pup, he did not find it irritating at all. It is a bandage adhesive remover.
Gluing ears is a matter of personal choice. If you have your pup on a non-breeding, non-showing contract, then you have no obligation to glue.
However, if you got your pup on the expectation that pup will be shown, then yes, you need to deal with the ears. Contact your breeder for clarification if you are unsure. It seems to me that if you got the pup on a showing contract, the breeder would do more than just say "do it". I suspect, the breeder just meant "it's a good idea".