Once a fixture of IEs, this feature is no longer supported in IE8.
The thingy is - was, actually - the little bar that appeared in the upperleft corner of any image in browser, bigger than 200x200 pixs.
From it, one could save, print, email and another one that I don't recall.
all these features are to be activated w the usual 'save', email, etc, in the browser commands and buttons.
But, in spite of this, I recommend IE8 highly.