Hi Brad, also now that I read your message again I see that you mention FBX format. Although it's technically possible to have NURBS objects in FBX format, it's really quite rare. The vast majority of the time FBX is used to transfer polygon mesh data and not NURBS data.

So it's fairly likely that you actually have a polygon mesh FBX model and not really a NURBS FBX model like you wrote.

MoI only opens NURBS data and not polygon mesh data, if you have polygon data you need to open that with a polygon modeling program instead of with MoI.

- Michael

http://usa.autodesk.com/adsk/servlet/pc/item?siteID=123112&id=20481519

Here is a link to a free (?) converter. It includes FBX to OBJ conversion.
(Never used it)

- Brian

when you have the Obj file from Moi
you can use that ;)