I downloaded instakill saber from sithlordrevan at filefront but sadly his colour is limited to only one which is red. Any idea how I can change it to other colours like blue? Because I'm playing lightside and figured that red colour saber doesnt suit me even though it is *instant kill*. I would like to learn how and use it for my own purposes only. Thanks!

I specifically don't know how but post this exact post in Holowan thread and their will be plenty of people willing to awnser your question.

I took the liberty of making them for you.

http://www.mediafire.com/?z6t3qapim37wdpk)

All tested and working in-game.

Taken from the readme:
Insta-kill Lightsabers

Installation
-------------------------------------------------------------------------------------
1)Copy the files "g_w_lghtsbr21.uti" through "g_w_lghtsbr25.uti" to the following directory:
C:\Program Files\LucasArts\SWKotOR\Override

2)In the same directory open the file "swkotor.ini" and add the following line under "[Game Options]"
EnableCheats=1

3)When in game, press the ` key to open the cheat console and type the cheat commands below
without the quote marks:
"giveitem g_w_lghtsbr21" - Insta-kill Lightsaber (Blue)
"giveitem g_w_lghtsbr22" - Insta-kill Lightsaber (Red)
"giveitem g_w_lghtsbr23" - Insta-kill Lightsaber (Green)
"giveitem g_w_lghtsbr24" - Insta-kill Lightsaber (Yellow)
"giveitem g_w_lghtsbr25" - Insta-kill Lightsaber (Purple)

4)The items will then appear in your inventory so you can equip them


Uninstallation
-------------------------------------------------------------------------------------
1)Delete the files above from your "C:\Program Files\LucasArts\SWKotOR\Override" directory

2)Done :)

Have fun :)

Thank you so much vindikorr!!