My students and I have drawn parts in Inventor, imported them into MC9, and are having trouble generating the toolpaths for the surfaces. Can anyone tell me a good website or resource for us to look into

Help, HS teacher has student who drew Inventor file as 3d model, converted it into MC9 file. Came in as a beautiful surface model. Now, I need help finding out how to generate the surfacing toolpaths to machine it out. Would also be happy if someone could direct me to posts, forums, or tutorials where i could also find this info. Thanks