Get yourself a Haynes manual
Are you sure ist the pump and not the relay?
In a nutshell you fold the rear seats forward to uncover an access plate underneath the seat.
undo the screws and remove the plate.
Disconnect the wiring harness, the fuel supply & return lines Charcoal canister lines
the pump is held in by a big securing ring but before undoing the ring you must note its allignment between the pump & the tank.
the pump should then lift out one the securing ring is removed.