Anybody got it to work with GOG version? If so - how did you managed to do it? Perhaps the Unofficial Patch is already integrated? I wish to use Mysteries of the Sith Retexture Pack but it requires Unofficial Patch.

Here are the links:
http://community.pcgamingwiki.com/files/file/230-star-wars-jedi-knight-%E2%80%93-mysteries-of-the-sith-unofficial-patch/
http://www.jkhub.net/project/show.php?projid=660&section=downloads

I don't recall having issues applying the Unofficial Patch. The problem that I had was with getting 3D acceleration to work. I figured out how to do it in the base game, and documented my steps here, so I knew what I was doing, but the same steps just didn't work for Mysteries of the Sith. Eventually, I just gave up on the expansion totally, since I wasn't willing to play the game with software rendering. If you're willing to play with software rendering, it should easy to do so. I don't know if that retexture pack will work or provide any tangible benefit with it, though. It's probably intended for 3D acceleration.

Actually 3d acceleration works straight out of the box for me. What I mean is that GOG version has working 3D acceleration. I even wanted to make a post abut it and ask if is it just me or maybe they are talking about the old version - that it isn't working. Maybe it has been updated since than.

I remember playing non GOG version that it was a huge problem and I needed to play the software version. But now it's fine. Of course I have to play 4:3 (1024x768) since in 16:9 the weapons have different FOV and I don't know how to change it.

By the way. I don't think it is it important, since I don't see 3dfx logo at the beginning (which I should if it would be 3dfx), but I have nGlide installed.