Regarding incorrect loadings for takeoff:
Whilst the 744F does have a warning for incorrect trim settings, it does not warn you if your trim is set for an aft CG and the aircraft CG is *very* far aft. However, assuming the Weight & Balance Computer was functioning on that flight, a visual comparison with load sheet CG would have alerted the flight crew to any anomalies.
Also, as previously mentioned, the load was the same and only fuel levels were changed. Sorry if I've missed a previous post, but what would have been a typical fuel load for this flight (and, in the absence of an HST, would CWT fuel actually push the CG forward, rather than additional wing fuel pushing the CG further aft?