@michele:

My 5 year old Basenji (we have had her since March) goes to the bathroom on our deck. We put her out the back door onto our deck and she usually goes no further tan the deck to go to the bathroom. Is there any way that I can stop this from happening?

Put her on a leash and walk her to where you want her to go every time. Praise her when she goes, then let her off her least to run around.