Putting the demo level into the whole game......

[Guise]

.......how do i do it?

[teleguy]

Put the map into your base folder and when you are in game open the console and type map demo.

[teleguy]

In case you don't have the map http://www.filefront.com/?filepath=/gamingfiles/Jedi_Knight_II/Maps/Single_Player/demomap.zip