I've read The Count of Monte Cristo a few times now, and can honestly say it's probably my favorite book. And for the most part I understand everything that's went on. But there are a few things I'm confused about. First of all, when The Count meets Franz the first time, he introduces himself as "Sinbad the Sailor." When Franz sees him in Rome, The Count pretends not to recognize him. (Though, considering his skill at disguise, he could not have seriously expected Franz not to recognize him.) So why would he ignore this prior episode? Franz himself wondered this, but it was never resolved.
Another thing is, the identity of Edmond's aliases throughout the book appears somewhat inconsistent. For example, when The Count talks to Julie and Emmanuel about Lord Wilmore, he says he's an old ACQUAINTANCE of his; a philanthropist (implying he may have been the one who saved M. Morrel.) And that he had "lost track" of him. Yet, later on when Villefort is inquiring about The Count, Lord Wilmore is easy to find, and instead of calling himself The Count's friend or acquaintance, he says he is his enemy. So why these inconsistencies? In all other matters The Count was almost impossibly exact and careful to conceal his identity and achieve his revenge.