To install the SLR skin AND be able to use it you must do the following:

To Install the Skin:
1) Copy BossSkins_slr3.ini to your system directory (default location = c:\unrealtournament\system)
2) Copy BossSkins_slr3.utx to your textures directory (default location = c:\unrealtournament\textures)
(the skin is now installed)

Open Unreal Tournament and go to Options, Player Setup.
Under the Class section choose Boss
Then under the Skin section choose SLR
Finally click Close and play UT to your heart's content!


Troubleshooting:
If you go into Unreal Tournament and into your Player Setup and do not have "Boss" as a Class type then you must do the following:
1) Exit Unreal Tournament
2) Go to My Computer
3) Go to your Unreal Tournament folder and to your System folder (default location = c:\unrealtournament\system)
4) Find user.ini and make a copy of it (select the file, go to Edit and click Copy...then go back to Edit and click Paste)
5) Double Click on your user.ini file and add the following section (note, I recommend adding the section just after the [DefaultPlayer] section. See end of document for example):

[BotPack.Ladder]
HasBeatenGame=True

6) Save the file, load Unreal Tournament and try to open the SLR skin again. If you still do not see the Boss class type then you will need to check carefully that you followed the above steps.


User.ini file example:

[DefaultPlayer]
Name=Example
Class=BotPack.TBoss
team=1
skin=BossSkins_slr3.soul
Face=
Voice=BotPack.VoiceBoss
OverrideClass=

[BotPack.Ladder]
HasBeatenGame=True

[Engine.Input]
Aliases[0]=(Command="Button bFire | Fire",Alias=Fire)