Walkthough writen by Rogue_Shadow, and AcidBasick discoved that you can make new bloods

[Blood]
Model 0=BloodSplat.nif
Model 1=BloodSplat2.nif
Model 2=BloodSplat3.nif

These are the blood models, new ones are not required for new textures.

Texture 0=Tx_Blood.tga
Texture 1=Tx_Blood_White.tga
Texture 2=Tx_Blood_Gold.tga
Texture 3=Qgreen_blood.tga

These are the texture files, to add new ones, add in a new line:
Texture X=TextureName.file type
Make sure the new texture is in the Morrowind>Data files> Textures folder

Texture Name 0=Default (Red)
Texture Name 1=Skeleton (White)
Texture Name 2=Metal Sparks (Gold)
Texture Name 3=Green Blood (Green)

These are the names of the blood that will show up in the CS creature blood drop down menu. To add new ones: Texture Name X=Whateveryouwant