Buy a Haynes or Porter manual. The procedure is covered quite well in there.
Potted version:
Drain oil and water - dispose of in an environmentally friendly manner.
Remove exhaust manifold and front pipe/cat section.
Remove intake manifold and throttle body.
Remove gear linkages - unbolt the front one and pop the balljoint of the rear one.
Remove the speedo cable from the gearbox end.
Remove driveshafts from gearbox? Naaaah, lets do it the easy way:
- Jack up the car and support it so the front bumper is approx. as high off the ground as your new engine is tall. Remove the front wheels.
- Undo the lower strut to hub bolts on both sides.
- Remove the inner CV boot securing clips on the big ends.
- Pull back the hubs and disengage the tripods on the shafts from the cv joint outers.
- Bag up the open ends of the joints so they don't get mucky. Carrier bags and tape will do nicely.
- Remove clutch cable, any remaining water hoses and wires connected to the engine. Check for earth leads etc.
- Support the engine with the hoist.
- Undo the mounts and drop the engine and 'box tothe floor, carefully.
- Separate engine and gearbox
- Put gearbox on new engine (Don't get them mixed up, would be a terrible disappointment)
- Put engine and box back in, reconnect / refill everything. Cento starter and alternator will fit just fine.