Maybe you should find out what the vertex indexes for the vertexes you need to know of in getDestinationMesh inside a VertexController is. Assuming jpct always tags the vertexes with the same indexe when you import the model, then once you figure out which index in the SimpleVector[] from getDestinationMesh they would stay the same and you could use them where you need it. Also, if your looking for a definite vector e.g. 100,30,40, you could look through the PolygonManager of the object, reading each polygon and then checking the values for the vertexes of the Polygons. When you find it, just somehow record its polygon number and which vertex it is of the polygon 1,2,3.
Maybe this will help
Jman