Take a look at this pic http://www.webrocker.de/jaguar/cms/2007/05/12/setup-the-tremolo-system/ - look at front view
All you have to do is take the bottom 'T' nut off and remove the spring (hold the assembely together whilst doing this so it don't fall apart). Then you need to screw the 'T' nut back on so that it clamps the movable plate tight against the trem-lock. That's it, one solid bridge!
I reinstalled the bridge with the spring placed back on the bolt (not fixed on) just to keep it safe and whole, ready to be reverted if the urge takes me.