Wow, I remember reading this guide way back when in early '04. He kindly replied to some PMs I had too
Aside from the gear information, the guide still holds its own nicely. SE did claim that CHR does not affect provoke (in contradiction to what the guide says), but they did not state whether CHR helps "maintain" hate longer. While that is a difficult theory to prove, it still seems to hold water to this day.
In general, most exping PLDs probably want to put enmity+ on whatever slots they can and put some DD gear on other slots. I don't think VIT rings are worth it. Using accuracy+ or attack+ gear to bump up your damage is usually worthwhile.
With enough DD gear and a smart PT, a PLD can get away with going purely DD (Haubergeon or SH, str/accuracy/attack gear). It depends on what the PT needs.
Gear for HNMs is probably something that is not covered in his guide, but back when he wrote it, no one was doing the HNM scene. I don't know if that is something people want to see though.