If you can work a Bus FMC - a 757 FMC should be easy - since the Pegasus Honeywell - made under license for Sextant FMC was based on the 757/767 FMC design effort ( that wasnt my quote by the way - that is Honeywells )- yes - another Boeing innovation in the Bus ( same for the leading edge slats )- if you are legitimate - Honeywell has a nifty PC-FMC CD-ROM based PC - FMS simulation - you order it from Honeywell website - or call there technical publications dept. - its about $200 buck s - but I hear they often give them away for goodwill's sake. By the way - this PC-FMS is given away at Fasrnborough & Paris Airshows as a demo - it works for about 30 days - unless you keep turning the clock back on your PC .. BABBAY ..