Client side character model changing

Does any one know if this is still do-able / how to do this. I've seen a vid of a human with the appearance of a undead, and it was a fairly recent one

yes it is
and wrong section
[Only registered and activated users can see links. Click Here To Register...] this is the right one

my apologies, i did not see a sub forum group to this specific topic any where. darn stuff being in german ;P