Remove Photoshop CS3 public beta

If you participated in the Adobe Photoshop CS3 public beta program, you must clean your system before installing the final shipping version of Adobe Creative Suite 3 applications.

• On Windows XP: Remove Photoshop CS3 using Add/Remove Programs in the Control Panel.
• On Windows Vista: From the Programs section of the Control Panel, select Uninstall A Program.
• On Mac OS: Open the uninstaller from Applications/Utilities/Adobe Installers.
  
  Note:You CANNOT remove Creative Suite 3 applications by dragging them to the Trash; you must use the uninstaller.

After removing the Photoshop CS3 public beta, you can install the shipping version of Creative Suite 3 applications.

You can download the script from the Adobe website at: www.adobe.com/support/contact/cs3clean.html

Resource:
http://www.adobe.com/