Colimo uses 2D images to be independent of the render engine. But you need a special pass with Vray, Mental Ray or Modo so is required to be available on yo...

You can see it in the tutorials section: Videos and DEMO. The automatic method is available only in 3DMax by a script included in the package. 

No, Colimo don't handle 3D data, it works only with 2D buffers. 

Hardware: Graphics Card with Shader Model 3.0 (almost anyone) Software: DirectX9 and updated libraries Microsot Framework .NET 3.5

No, at least for now.

Yes, for all versions numbered 1.xx 

Yes, you can see it on the purchase area

Yes, no problem with it. 

Yes, from version 1.2 

Theoretically up to 8192 pixels but most graphic cards have problems from resolutions above 6000.