MrT, suggestion on saving in RPGs. I use separate saves for major activities (Fight, Door, stairs, trade, LvlUp, etc). Then I use the quicksaves for the segments in between these events.

Once I'm at the end of an "Act" (in any game), I always KEEP a saved game close to the end of that Act. That way, if I later find out I missed a major event, I can go back (if it's really worth it).

Hope this helps for in future. Looks like you're hosed in this instance. That's too bad and I feel your pain, man.