I recently bought a 1DS MKII, and noticed that when I import pics taken by this camera into Lightroom 4, the Creator/Artist name listed is the previous owner. 

I understand that the EOS utility software provided that capability but apparently there is no updates utility that will run on my new iMac with the Mountain Lion OS.  I did load up an older version, but when I hook up the camera, I get a message that the camera can't be recognized.  That's funny because it doesn't tell me that until I plug in the camera.  So it is being recognized but the utility can't work with it.

Can anyone suggest how I can change the internal info in the camera that brands my pictures as those taken by the previous camera owner?   Thankd!