Hi TraceySNewell, Sorry that you had that experience. Please see this document: http://helpx.adobe.com/content/help/en/illustrator/kb/pantone-plus.htm l#main-pars_text_11 and follow this part:

Adobe InDesign CS6:

1. Quit the application.
2. Download the file Traditional_Pantone.zip and extract it.
3. Place the whole folder in \Adobe Illustrator CS6\Presets\en_US\Swatches\Color Books
4. Restart your application.

Traditional_Pantone.zip

 

@Tracey, where are you trying to see the Pantone swatches, is it this way: From the Swatch Libraries Menu? then if not this way, then please tell me the process you're trying to access the Pantone swatches.

@Tracey, can you please show me the screenshot of Get info window for the /Applications/Adobe Illustrator CS5/ folder. Take the screenshot by expanding the Sharing & Permissions panel within the Get info window. I would like to see the permissions applied to the folder for your current account. Also, meanwhile create a new Administrator account from Users & Groups under System Preferences and login into the new admin account and check whether you can see the swatches.

Press the Lock icon and feed in your login credentials. Then click o the + icon on the left and add your current account to this list. Add twice until your see your current account name listed unded the Name tab and Privilege set to Read & Write for your current account. Make sure by repeating the process twice then from the gear icon select "Apply to enclosed items". Once this is done, then launch Ai and test the issue.

@Tracey, you're inside the wrong window. Within the GetInfo window at the bottom right corner you will see a lock icon. Click that and input your login credentials. Then within the Get Info window click on the + icon on the bottom left corner of the window to see a list to add users: In this image, from the right side of the panel choose your name and click Select. Repeat this 2 times to make sure it is added properly and is showing within the Sharing and Permissions panel Name tab.