Copy the entire Showit™ folder to the scripts directory in Photoshop.
Mac -> Applications -> Adobe Photoshop CS2 -> Presets -> Scripts
Windows -> C: -> Program Files -> Adobe -> Photoshop CS2 -> Presets -> Scripts
Showit™ can be accessed through the Photoshop scripts menu:
File -> Scripts -> Showit™
...and to make things even quicker set the Showit™ script to be a shortcut by going to:
Edit -> Keyboard Shortcuts -> File -> Scripts -> Showit™ - I use (apple, shift, z)
