Nothing that you have said you have done will make the game stop working. You may need to uninstall and re-install your game.
You will need to make your own mod shortcut:
1) Find or make a shortcut for Rise of the Witch-king (This can be the shortcut that you use to play the game)
2) Copy this shortcut. You can rename it.
3) Get the shortcut properties and in the Target field you will see this.
"C:\Program Files (x86)\Electronic Arts\The Lord of the Rings, The Rise of the Witch-king\lotrbfme2ep1.exe"
This target may be different on your computer. It should be the path to the game .exe
4) Type or copy this into it:
"C:\Program Files (x86)\Electronic Arts\The Lord of the Rings, The Rise of the Witch-king\lotrbfme2ep1.exe" -mod "C:\RJ_RotWK_1_06"
"C:\RJ_RotWK_1_06" is the path to the mod folder. It should be the same since you extracted the mod into C.
I don't think there needs to be a video tutorial. Note to myself: I may make one for SEE when it comes out.
Did you read the instructions in the readme? You didn't say that you did.
Remember that all worlds draw to an end and that noble death is a treasure which no one is too poor to buy. - C.S. Lewis
There will come a time when you believe everything is finished. That will be the beginning. - Louis L'Amour
What will matter then will be people. If relationships will matter most then, shouldn't they matter most now? - Max Lucado