2 years later, i have the same problem, but i don't see any posted solution. I have recently installed LT 2010 and I am having the same problem with the status bar. According to help screen, it should show up right next to the viewport scale, when the viewport is selected. It does not. I have clicked the drop-down list, and rt-clicked over the status bar, but everything is checked to be visible and there is no option for annotation scale. The only way for me to check the annotation scale is to rt-click on the viewport, then expand the properties to see it.
Have you searched your system variables?
There is no solution to this. You are not missing anything. The info in the Help file is wrong.
I happen to be using LT 2010 too. In PAPER SPACE you have no ANNOTATION SCALE button at all. Why would you want to have the possibility to see the annotation scale of a viewport at all times? Normally the layout viewport scale displayed by the VIEWPORT SCALE button is identical with the viewport's annotation scale, because the program ties the annotation scale to the viewport scale. Whenever the viewports scale is changed with the VIEWPORT SCALE button the annotation scale is set to the same value.
There is only one possibility for the annotation scale of a layout viewport to change to 1:1 beyond the user's control, which I happen to know of, but you can immediately find out because your annotation objects disappear when this happens. I am talking about a situation when you set up a named Layout View, and then try to restore that Layout View when you are in Model Space of a Viewport, the program will automatically switch to Paper Space and restore the requested view and change the annotation scale of the viewport to 1:1 (even if the viewport is locked !). If you utilise heavily named Layout Views in the manner described above then you may have a good reason to have the viewport annotation scale displayed at all times.