Another solution to the problem...!
Hello... The bug happened to me... HT all the time answered "Where?"... so I thought "Well, ok, I'm going to continue doing everything else I can do and then I'll try to get a savegame to continue"... and I continued doing Monkey combat until I won Jojo, and had every other possible thing done. So, when the only thing left to do was talking to HT, I went to him and throwed him the coconut and the bug had gone away! He started talking, so then I throwed the 2 other items and the story went on... Miracle?? I dont know, but I did not have to load a previous savegame or get any savegame from other player. Try it, It's worth to!