This archive contains files that may benefit you in creating your own custom models and skins for Star Wars:Jedi Knight:Jedi Academy.

A models and skinning guide from JK2 with a new introduction for JA.
Unpainted skins for many of the models.
Modview.exe to view models.
Skeleton information for the main humanoids and other creatures and ships.  (this is really only useful to the l33t modelers who have figured out our crazy gla files. :)  but it should help by declaring the bone names and hierarchy.)

Enjoy.