Hi,
Im from a blitz background and have just stumbled across ogre.
I have written a terrain package, which may or may not be useful for you. It originally started out as a blitz 3d specific program, but has just had .X exports added to it. http://www.d-grafix.com/softwareted.html
The X output is in a well layed out text format complete with the normal, vertexcolor, alpha and texture UV information. It also exports height/color/alphamaps.
Being completely new to ogre (actually ive just found the site) I wouldnt know where to begin to write a demo in it, so if someone has some spare hour or two and can show a T.Ed terrain with alpha, with a basic mouselook in a demo using OGRE i'd give them a copy.
Btw, can you use / has anyone used ogre with blitz max?