ok i uninstalled everything, all blenders, scripts, everything related to mod making for skyrim(but not the CK),shutdown and rebuilt.
i make a folder on my desktop named "design and file programs" and a folder in there named "blender2.49" and installed blender inside it.
i then installed python 2.6.6 and let it go where every it wanted.
i then installed pyffi 2.1.8
i then installed nifskope 1.1.1
i then tried to install nifscripts 2.5.8 but couldnt because pyffi was out of date.
i then updateded to pyffi 2.1.9 and installed nifscripts
i then restarted
next i made a basic recurve bow in blender 2.49b and once done i imported an ebonybow nif in to blender on layer 2.
moved ebony over to my bow
copied weight and deleted ebony once done
moved bones over to my bow armatures, dont make groups
clicked bow, tab, make real, tab, named it to "BowMesh:0" in both boxes
clicked bow then bones, file, export, fallout unclick the one thing the tutorial tells you to.
nope un-uniform scale and rotation work around by ctrl-a
with bones and bow still highlighted ctrl-a'ed, clicked scale and rotation to objdata.
then exported with same options as tutorial
this time in nifskope there was only three things in the nitristrips node. the skininstance, tristripsdata, and a stencilproperty
deleted the stencil thing and followed the rest of the tutorial.
ppshaderlighting and everything else was still missing. there where no uvs.
just tried on the other computer. installed all the files in the default places. made everything new from scratch all that good stuff.
still no go and that computer has never had blender on it or any of the other files you need.
the only thing i can think of is one of the files that you need that insanity linked in his tutorial is bugged or he forgot one little thing that makes or breaks the whole file.
that or a mesh error on my part.