Do you have the current version of whatever browser you use? I didn't see them with IE8 but they appeared when I upgraded to IE9.
Do you have blank lines up above where you type, where the icons might be "hiding"? Slide (don't click) your mouse over those lines, and although you won't see the icons, text will appear where they should be. When the words "insert image" pops up, left click on it. See if that works for you.