CompuServe Messages

I am having trouble cutting windows into a spaceship-like mesh that I have created using the FIT tool in thre 3D lofter. Is there any simple way to do this? On top of that, I would like to add tinted glass windows to the holes. How can I make these shapes come out the way I want? Is there also any dynamic way to apply decals without having to continually re-render to check if they are properly positioned? I would greatly appreciate any advice. Thanks in advance. Darin Friedmann