Script Statistics

[newb]

Hello All,
I tried searching he forum but could not find an answer. I have the academic version of Adobe Design Standard 5.5. My question is this: I want to use the script statistics to stack photos in photoshop CS5. But I do not see the tab for statistics under scripts. Is it possible for me to somehow install this or am I out of luck?
Thank you.

[Hoogle]

1. Choose File > Scripts > Statistics.
2. Choose a stack mode from the Choose Stack Mode menu.
3. Apply the stack mode to currently open files, or browse to select a folder or individual files. Files you select are listed in the dialog box.
4. If desired, select Attempt To Automatically Align Source Images (equivalent to choosing Edit > Auto-Align Layers). Then click OK. Photoshop combines the multiple images into a single multilayered image, converts the layers into a Smart Object, and applies theselected stack mode.

[newb]

Thank you. I understand that statistics is supposed to be under scripts which is under file. But when I do that statistics does not show up at all.
see this screen shot: