Lookup Neveredit on google, it's for Neverewinter nights, but it should work. I heve another thread, for .NET framework on mac, can't find the link yet.
Hey, actually, here's something better!
http://nwvault.ign.com/View.php?view=Other.Detail&id=669
It was for Neverwinter nights originally, but it works ok for KotOR.
I fornd a program resembling .NET framework, it's in another thread, posted by me. Can't find it at the moment. Tell me if it works, because i'm on a windows at the mo.....
EDIT: here: http://www.mono-project.com/Main_Page