The first thing you need to do is divvy up the BP's into the separate orhtogonic views. I used photoshop. Make sure that they're all the same scale and lined up. I've overlaid them all here to show how I lined them up. Save each view separately. Then, (if you scroll up to the screenshot of the modeling room, you'll see what I mean,) on the right-side menu, under the Global Tab, you'll find the backdrop settings. there you can open each view's corresponding BP. (if you find that you can't see them, even after you've enabled them, you need to change the interactive renderer to Eovia Software or OpenGL. Then go to the Global tab in the properties tray. You can now load your images to the background of any of the conical views.) And Shonner, If you're going to stop using Rhino altogether, maybe you wanna sell me your license? I could use a discount on it. Seriously. You can EM me here on renderosity... . Anyway, I've found that once you find a modeler that suits you, stick with it and use it as often as possible. The more comfortable you are with it, the better modeler you'll be. And the better you are in one modeler, the more easily you'll adapt to others.