Confused about compiz plugins, trying to get "window rules" plugin

[David M. Karr]

There appears to be so much documentation on Compiz plugins that I can't 
figure it out at all. :)

I'm using Gnome, and I'd like to figure out how to make certain 
application windows ALWAYS sticky, without having to select "Always on 
Visible Workspace" each time I bring it up.

Looking through the "Compiz plugins" list, I found something called 
"Window Rules" which seems to be what I need.  The problem is, I can't 
find anything that actually says how to install and configure Compiz 
plugins, or whether that's actually what I need.