Locke remembers his death, boats on the Hyra island

It is daylight now on Hydra island and Locke has taken off the jacket, tie and Christian Shephard's shoes. He is standing on the beach gazing across the water at the main island. Ilana walks over and gives him a mango. He asks "Are those your boats?" pointing to the two boats my the tree line. These are the same kind of boats that Locke he and his group found on the beach before he left the island (see photos here and here from "The Little Prince"). Ilana tells Locke that there were three boats, but the pilot (Frank Lappidus) and a woman took one and ran off in the middle of the night. Locke asks if she has a passenger list for the flight, but she tells him to talk to Caesar. He bites into the mango and says "I think this is the best mango I've ever eaten." Ilana tells Locke that no one remembers him being on the plane and Locke says "Well I don't remember being on it either." As the conversation continues, Locke says "I think this suit is what they were going to bury me in." He continues and says "I remember dying." Ilana looks spooked, shakes her head slightly and walks away.

So Locke remembers dying and knows why he's dressed in the suit. It seems that he's curious to see who else was on the plane, most likely wondering if Jack, Kate and any of his other old "friends" were on board. Where did the boats came from and who did they belonged to originally? Why did Frank take one of the boats and who is the woman that he left with? Was Caesar and this group of survivors the ones shooting at Locke, Sawyer, Juliet, Miles, Daniel and Charlotte in "The Little Prince"?