Anyone here ever tried the same thing and succeed? How do I go about doing this?
EDIT:

I usually answer my questions after I post them. I could spend hours on the issue, then post about it, and 2 minutes later find out the answer with a bit of googeling or tinkering. XD so don't feel bad.
also look into nifskope, that way you don't have to replace the original.
or maybe i didn't understand what you asked.
meow