CompuServe Messages

So what's the diffrence between #5 and #7 then? I guess these include meshes to merge into 3DS, or do I build my own plants? How much is that World Builder program? Is it like Vistapro or do I have more control when I create? I'd like a program that is like a big mesh and then I pick a vertice and pull it up to create a moutain for instance. And then take in to 3DS as a 3D-model and not just a background. Thanks/Joakim