greenfield,
Good point and understandable concern. There are a few differences:
1. The B757 fuel spill APPEARS to come from the surge tank vent area designed to release fuel and well away from the engine exhaust.
2. Concorde had a ruptured tank close to the engine.
3. Concorde had the afterburners lit.
backtrack, Just going for another look. No, don't know and not sure if my B757 manuals are still in the loft.