What's the difference...

[The Machine]

...between a mod and a mutator?

[Freakish]

Mutators change settings in the game, they do little things and are usually not even a few hundred k in size. Mods completely change the game; adding weapons, gametypes, textures, etc so they are usually on the order of megabytes.

[The Machine]

Okay, thanks. Next question. :D

If I install a mutator or a mod and then a newer version comes out, is it possible for me to uninstall the old version so that I can replace it with the later one? (And if so, how?)

[phalanx]

the new one would over write the old one and if not just delete the files from system