Where is BeamMP files?

Where is BeamMP files? im trying to put the powerups file into the BeamMP files but i cannot find it and there is no where on the internet where I can find the BeamMP files location

Are you trying to add that mod to your server?

no i just need to add the mod to the beamp files so i can join the server im trying to join

Why is that? The server provides the mods you should play with.