Expose on Dock

I have my spaces all set up, but cannot get Expose or Spaces on my dock.
It used to be.....now I cannot get it back there.

I found it......BUT

I found out what I did wrong, got it on the dock, now I have no idea how to use it.
I have read the 'spaces' info.
BUT I still cannot figure out Expose,spaces and automator.
I have 6 things chosen in Expose, but none of these are in spaces.
I am so confused.
Anyone want to attempt to explain this to a dummy>

Are you looking for a basic definition of what spaces and expose does? I hope that's what you mean

Spaces - it creates virtual spaces of your desktop. What you can then do is have one space with mail, one with itunes, one with a browser, etc. So that you can setup virtual desktops of applications. I use it to run Fusion on full screen on one, a browser and email on another.

Expose - it shows you what applications are running. One setting shows you ALL windows open and another shows you one application in focus. This is different than spaces, as it will show you within ONE desktop what applications are running.

I hope that helps, if not, reply back.