could u explain to me what a module is...im lost

straight from those little yellow books with the doodle guy on the cover, this is like opening a door in your house:

open door(install module) -> walk through door(load module) -> new room(module) -> stuff in room (some other functionality tacked on to OS in the form of wallpaper changer or etc.)

hmm..a module is something that litestep uses to add a certain function, like a system tray or taskbar.