the high pressure pipe to and the low pressure pipe return are held in place by one 10mm bolt
undo this and then you can lever off the securing plate and pop the pipes out

just amke sure you mark which pipes go into which holes as they are different across some of the range, not sure if this actually has any effect or not but better to be safe than sorry eh

the other 2 are screwd into the rack but from memory, it's only a cooling pipe for the ps fluid

is the car 2 or 4wd?
if it's 4wd you are looking at a lot of hassle because the diff gets in the way, but it it's 2wd then just disconnect the indermidiate shaft, undo the to rack mounts and give yourself plenty of space to move it further forwards so you can get access to everyting

it's also an idea to drain the fluid first before undoing the pipes, as it gets absolutly everywehre and is worse to clean up than normal oil