It's bolted to the subframe via 4x10mm nuts/bolts.
Remove the 13mm bolts that connects it to the steering column (under the big rubber surround).
Then remove the track rod ends from the rack, 17mm or 19mm spanner I think.
Then all the lines etc.
Finally remove the 4 bolts holding it on
It's probablys a pain in the arse job to do when the subframe is still attached to the car though.