These pages are well known but I do have an issue with the oil change advice. It says to put the new filter in the plastic housing and then screw it home, if done this way it's very easy, especially for a first timer, to fail to engage the oil drain spigot correctly.
Much better to put the new filter into the engine first taking care to locate the spigot, then install the plastic housing over it.
MkIII VTR 1.6hdi Modutop, Climate Pack, 16" Alloys
Having just done this job I would agree with the filter advice given by Solent and is what I ended up doing.