I've been wondering this after seeing some videos with about 3-6 people fighting at once, can you do this and how?

Post the link here

http://www.youtube.com/watch?v=aebZ0j1kxfA

That was available in in the clients between 3.0 and 3.7 and only on single player.

It was disabled in 3.8 because of some lag issues (mostly the physics and collisions lagged the clients).

So if you want to make replays like that, you need 3.72.

Is there any way someone could download an older version of toribash?

There I uploaded it for you.

Get it here.

thanks