Osteopathic schools do not use the AMCAS application, they use a seperate web application here:
https://aacomas.aacom.org/ .
The nice part is that the applications are pretty much the same, so much so that you can just cut and paste most of your AMCAS app responses into the AACOM app (or vice versa).
Good luck with the applications.
-Bill Brasky
"First Friend of Brasky: We once had a bachelor party for Brasky. He ate the entire cake.. before we could tell him there was a stripper in it..
Third Friend of Brasky: Brasky once hosted the Grammy's, and gave every award to Corey Hart!
Second Friend of Brasky: He has a toenail on the end of his penis!"