Easy installation instructions:

• Mount the .dmg
• Run the Install Quite Plug-ins.app
• Select the radio button for Open an Acrobat plug-in folder in the Finder
• Click the Continue button
• Click the Open button
• Copy/paste the appropriate plug-in into the folder (UB or PPC)
• Start Acrobat
• Click > Plug-ins > Quite Imposing Plus 3 > Imposition control panel
• Enter any name
• Skip or enter "none" under Organization
• Copy/Paste the Serial: 7081-5662-3800-2441
• Copy/Paste the Code: 6988
• Complete the registration