For morphs, best thing to do is try out what you're reading in the manual. It's pretty easy to figure out and it'll be the best way for you to learn. A few members like Johnar
have put up tutorials regarding the subject as well.
Ani2pov, as far as I know, can only handle skeletal animations in a limited scope. If you looked here: http://texel3d.free.fr/projets/ani2pov/
you'd see this:
Animations can only be converted from Anim8or (Skinned meshes sequences) to Milkshape 3D (.ms3d,.txt) and SMD (.smd).