Quoting your reg. number, collect all of the service parts from the motor factor.
Start with oil, sump seal and oil filter, followed by an air filter and fuel filter. If your car has A/C you may want to consider a cabin filter too.
Check the sump plug for this 6mm internal square I'm on about - it may have a large hexagon on it too. Either way, be sure you can undo it!
Drain the oil when the engine is warm, and when its draining, spin off the oil filter too. Prime the new filter as much as you can with new oil, and smear some on the rubber ring before you reassemble.
Clean out the dead insects and leaves from the air cleaner box.
Identify the fuel filter, on the front of the cylinder block. Is the lid held on by 4 5mm allen screws? Also look for the rubber priming bulb that you squeeze to fillthe filter up once it has been drained. Look for the drain valve on the bottom of the filter bowl too - often it has a length of polythene tubing attached to it.
Post back if you're unsure about this one...its the only bit remotely tricky.
John