I just picked this up at Best Buy today. They didn't have it on the shelves, but I aksed one the the employees and he got one from the back. Make sure you update it before you play it, there's already a pretty big patch out.
It annoys me too, computers in movies/TV are always so flashy and filled with unnecessary graphic interfaces and stuff. Everything's always done with the person madly typing away too.
You can get the list of officially supported games on the G15 here. There's user created applets that can do a bunch of other stuff and has support for other games too.
I think he was asking how to do that, not asking for help on a problem.
I'm not sure if this would work, but you might be able to do it by extracting the model you want from the GCF and replace all the other models with it as if you were installing a custom skin, putting it in the...
I never made it past the third level in Dark Forces, that game always makes me nauseous when I play it, no idea why. I still own it though, maybe I should try it again and see if it still does that.
I vaguely recall something like this happening to me as well. I'm pretty sure I fixed it somehow, or I wouldn't have be able to play the game... Posting the message may refresh my memory, though.