The first thing I would do is, go to your local PetMart or Petco and get a book on dog training.
Make a list of what you want she to learn.
The book will most likely instruct you to breakdown the skill into small steps.
for example you want her to rollover:
Teach her to sit,
next roll onto her back,
then all the way over.
At each step you reward her with a treat or time with her favorite toy.
Do not punish if she do not do it. (There is a place for reprimand in training a dog but not here)
Rewarding when she does what you want!, is Key.
Get the book, it will help.
P.S. keep me posted on her progress.