The Pilgrim's Regress and Sophomore Philosophy

I'm half way through The Pilgrim's Regress and, at the very least, I'm wishing I had kept my notes from my college Philosophy course. Wikipedia will have to help me out, I suppose ;) I did, however, find this very helpful link. It's helpful because my copy of The Pilgrim's Regress has no footnotes and I don't happen to speak Latin, Greek, or French. Apparently, Lewis knew all three.

I may have to break all kinds of CM rules and read this thing twice.