how do you install them then. apparently im doing something wrong
The instructions are in the .pk3, or you could check the starting thread here.
You put the .pk3 along with your other .pk3's (usually in ".../q3ut4" folder).
If you know how to run a bot server, then using these .pk3's is simple.
There could be many reasons why they do not work for you, such as something as simple as you do not have bot_enable set to 1 or you are trying to use bots on maps that do not even have an .aas file. I can only speculate.
It could even be your server build or settings.