Hi Denise,
Are you trying to bring the back to the front, or the front to the back? Or, are you using a separate fabric piece adding the binding? Have you allowed enough material to use this method?
How are you making your corners? Have you allowed enough fabric as you progress around each corner area?
Can you explain or provide a few pictures? More explaination of your process so far would help us to help you.
Pam M