No, it's not possible to save during talks and during battles. The controls were copied from the original Japanese manual, so it looks like the controls are slightly incorrect. The right click does move to the active character. The battle action menu isn't the same as the map menu, so they have different options.
Problem I had was in the readme file, the "show menu" option says "not used" and I can't access the menu AT ALL during the game and therefore cannot ever save. Do any of you know how i can fix this problem?? I can't access any of the options/menus... it also doesn't help that i can't play the game in window mode... -_-;;