Unfortunately, there isn't much in terms of tutorials for code modding. The best resources available are code3arena (google it), Mt. Wudan
, plain old google, and the JA Codding forums on this website.
Maybe I can help, what are you trying to mod?
BTW, I've moved this to the JA Coding forums.
---Jedi Guardian of the Newbie Questions
---Masters of the Force Team Leader / Creator
---Open Jedi Project Lead Moderator / Co-Founder