Here's how I installed the Reaper Bots...

1. Create a new directory inside the Quake directory, called 'rpbot'
2. Unzip the 'progs.dat' and 'autoexec.cfg' files to the 'rpbot' directory. Much easier to do if you have a prog like WinZip.
3. Create a batch file using 'edit' or 'notepad' as follows
   quake -nojoy -game rpbot
   Note: only include -nojoy if you're not using a joystick
   Save the batch file as something like 'reaper.bat' into the Quake directory.
4. Start Quake by running the 'reaper.bat' file or create a new shortcut pointing to 'reaper.bat'.
5. The keys will have been set to allow you to start up some bots.
6. Start a multiplayer game, direct connect if you're playing alone, you can also set things like Frag limits etc before you start. Frag Limits are especially interesting, because the game becomes a race to see who can reach the limit first and end the level.
   You should see a message saying 'Server running Reaper Bots v0.8'
7. Once the game has started, use these keys to control the bots.
   
   • b addbot
   • n add4bots
   • m frags
   • q top3
   • v verbosebots
   • o observer
   • [ skinup
   • ] skindown
   • p skinmode
8. So press 'n' to add 4 bots and off you go!!!!

I hope this gets you going, the Reaper Bots are far more fun than the monsters in my opinion.