Puppies should have their ears up before they are placed in a new home, if not, you purchased them from someone that doesn't keep them long enough.
I do have instructions on my site because so many people pay for a puppy and get little or no instructions, nor support after the buck passes hands.
http://www.yorkie.org/dogs/grooming_yorkies.html
Good Luck, and a Good Grade Masking Tape works best and can be removed easier with alchol, because it Disolves the Tape Glue.