I have a question... can you actually make characters as creatures without the error and CTD? (tried once with my char, changed Anime File, loaded Morrowind, started a new game then CTD when it was finished loading... lol... I think it's not even possible)

i believe you would have to physically go in and change the program of the Char that you want to become a creature. This would cause big errors because the game might not function without all of those ordinators or casius ending up like a bonelord. Be careful on whom you choose to change.

Try something like transforming yourself into a creature...
And you only get two errors if you change the char anime.

This might be slight necromancy, but I have something to add: Sabregirls hazaeki race.

http://sabregirl.tesmods.net/hazaeki.html

It's a shape-shifter race that can take on the form of any animal it's encountered. Click on the link for more info.

That mod looks really cool. I have downloaded the scripted spells mod and I really suggest it. There are very few flaws, if any. But one part with this mod that is left out from the scripted spells mod is the walls of bone, fire, and ice. However, I'm sure that can be delt with via the CS. If you want to play as a creature, I suggest scripted spells or (obviously havent tried it yet) Sabregirls hazaeki race mod.

character by creature? download the Great House Dagoth from Morrowind Summit ( http://www.rpgplanet.com/morrowind ) . First complete the blades quest to Illubini , Dagoth Gores fallen. If u killed him u have infected with corpus. u must cure it in 5 day or you turn to corpus stalker then go to Dagoth Ur and take the controll of it and u will not die. Then complete some quest and perhaps u can transfer to ascened sleeper.