Installing the Noise Ninja plug-in for Mac OS X
First go to your Photoshop plug-ins folder and remove any existing Noise Ninja or PictureCode folders or files.
Next download the plug-in again from our website here: http://www.picturecode.com/nn_plugin.htm
Click on the first "Click here" link under "Installation
instructions for Mac OS X" to download a StuffIt compressed file.
If you do not have StuffIt or have problems uncompressing the file you can download the latest free StuffIt Expander here: http://www.stuffit.com/mac/expander/
After you have downloaded the new plug-in you will need to uncompress it if your web browser did not already do it for you automatically. After you have uncompressed the plug-in folder you need to drag it into your Photoshop plug-in's folder. Here is a screenshot of me dragging the Noise Ninja plug-in folder from my downloads to the Photoshop plug-in's folder:

After you have moved the Noise Ninja plug-in folder to the Photoshop plug-in folder you need to restart Photoshop. Then open an image and go to the Photoshop filter menu and select PictureCode->Noise Ninja. Then go to the plug-in's Noise Ninja menu and select "Install or view license" and enter your user name and key and click "Install."
If your license is accepted click the "Close" button to close the license dialog. You should not have to enter your license again. If you license is not accepted please try again, be careful to type the user name and key exactly as it was provided to you. The user name is not the same as your real name, be sure to type what was provided to you with the keycode:

If you continue to have problems please contact technical
support.