I'm sorry if this has been asked before. I once heard you can export models from KOTOR into some format, then import them into Jedi Academy. Are there any good tutorials out there for doing this?
First check "Complete guide to character compiling JK2 / JK3 guide" to understand the process.
To help understand how to weight the character, i highly recommend watching Paul Greveson's workflow (JK2/JK3 differs a bit but the technique remains the same): http://www.3dworldmag.com/page/3dwor...orld_114_s_3ds
As for exporting stuff out from other egines, you'll have to dig around the web and find out.