You might be interested in Maybe This time by Jennifer Crusie. It is a modern re-telling of Taming the Screw. I think. Well. It has ghosts, and orphans, and an governant that gets into trouble. It lacks the cover, though.

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Edit: Another one that might interest you is The Spurned Viscountess by Shelley Munro. Still don't have the cover though. But really, really good.