Hi Rayman, welcome to the forum.

Also see here for some more info on what the Image options do: http://moi3d.com/forum/index.php?webtag=MOI&msg=325.1

re: bend and taper - unfortunately these are pretty difficult to do on Solids and not have different surfaces pull apart where they are joined at common edges. I don't expect to be able to do this anytime too soon, it's just takes quite a lot of work to make it work very well. Rhino version 4.0 does have some tools to do this kind of stuff, and it is easy to bring your MoI models into Rhino (they use the same file format), so for a while if you want to do those kinds of deforming operations, you'll need to do those in Rhino.

- Michael