pictures for back ground drawing

 From:  Doc (TONYG)
Hi again. My nephew helped me this wkend learn more about using the machine. We ran into a problem transferring the file from Moi to Cut3D. If we just drew a picture we could transfer it to cut 3D and open it. But if we used a picture in the back ground to help us trace the outline, then we could not transfer the file in stl to cut 3D. I am not sure how to make sure I am not running into problems with the "wire mesh" I have read about. More help is coming Fri night so I am trying to get questions answered before he arrives.
Any suggestions will sure be appreciated.