If your camera is at the center of your circle and you pivot around, try a little more overlap. About 1/3 works well for a panorama. If your subject is at the center of your circle, and you walk around it a panorama won’t work. Try to make a Photosynth, start here by uploading the photos you have. http://photosynth.net/create.aspx
Also if you use the Advice & Critiques forum you may find more people willing to help you.
Good Luck, Waldos Digital World