The Lightbox should be located on the bottom of the page if it is turned on. Just look at the bottom center of the WebEasy window for the Lightbox.
If you do not see the word Lightbox:
1) go to Tools > Options > General
2) select show file browser
3) click ok
This should display the Lightbox.
If you see the word Lightbox but not the window itself, try the following:
1) If the arrows are pointing up:
a) click on Lightbox once to open the window again
2) If the arrows are pointing down, Lightbox has been minimized:
a) move your mouse just to the right of the Lightbox name and the arrows
b) at that point a narrow double line should appear
c) hold down your left mouse button
d) drag the Lightbox back up until you can see it again