If you run the wizard initially it should have a Layout set up for you.
From inside the Toolkit, you can right click on Layout and run the wizard there too.

The easiest way to have the same settings is to turn repeater on, and configure everything on all screens at the same time.
With IS Boxer Repeater will have the mouse in precisely the same position on every client.
As long as your copies of wow are all at the same resolution.

You don't need Symbolic Links at all.
IS Boxer will virtualize your config file for each character.
Giving you different settings on a per character basis.
There's no gain from SymLinks with IS Boxer, plus it can be a patching hassle, etc.

The IRC on www.isboxer.com will have a faster response rate than here.
But posting here works if you cannot hang in the channel for a while.