Here are a few short tutorials for TESCS. Not the Morrowind modders' most frequently asked questions, but someone might find them helpful.

(The missing vampire head question does come up every now and again.)

There's a basic tutorial on adding a custom race here. Just added a bit on adding sounds to a custom race.

Here's a short tutorial on new summoning spells with Bloodmoon's unused summoning effects. Added a bit on missing icons and particle effects-- noticed thanks to redwoodtreesprite. There's also a scripted version here.