There's an addon for FS2002 called 767PIC (Wilco Publishing). It's very good with an FMS and all the other bits and pieces, dosen't work on FS2004 though-but there is a 767-300 addon coming soon for FS2004, again with all the bits and pieces by Level-D Simulations.
Best place to lookis on the Avsim site
www.avsim.com .