This thread is discontinued. Please go here.
Current version:
0.7 - now includes [ list ] and smilies support.
The documentation and downloadable code for installing this hack can now be found at http://kier.3dfrontier.com/vbhacks/vbcode.php. Please continue to post your comments and questions in this thread.
Let me know if there's any other functionality you'd like me to add, and I'll tell you if it's possible or not, and probably implement it if it is.