Welcome to the forums.
The back/forward buttons are for browse sequences, so you
have to have at least one in place for those buttons to show up.
They're not the same as browser back/forward buttons.
The "reload" button synchronizes the TOC to match whatever
topic is being displayed. If you have the Auto-sync TOC option
selected in the FlashHelp generation dialog, you also won't get
this button.
Quick question, quick answer.
--Ben