Hey,
I just mounted a new warn winch on my Rubicon. What you have is the fairlead mount, that will also attach to the winch mounting plate you need. (If you are using a warn plate) There are other mounting plate types that just use a single piece for both. I got a warn plate from here for the best price I could find.
http://www.4BUY4.com #70830 fits the latest model foreman/Rubi '05-'07.
The instructions will indicate removal of the whole front brush guard is necessary to install the plate and winch. This is NOT true, just remove the front plastic bumper from the brush guard, and you can insert plate and install winch without the pain of entire brush guard removal. I installed contactor inside right rear wheel well as instructed, with not problems. Other's have done left rear, but I think it's too close to exhaust.
When tapping into ignition wire for switch power, use the PINK wire in your ignition .