"The application could not be installed because the AIR file is damaged. Try obtaining a new AIR file from the application author."(MAC)

Troubleshooting

1. The Adobe AIR application installer could've found an instance of Adobe AIR or the Adobe AIR application on a mounted drive other than main drive. Time Machine (10.5.x) could have a backup of the application. Unmount drives other than main drive and retry installation.
2. It's possible that the sam-full.air application didn't download from the website completely. Retry downloading the sam-full.air.

If trying the above solutions does not work then the install log can reveal the specific issue. You can get the contents of the install log using the following steps:

1. Open the Console application from the Applications/Utilities folder.
2. Select System.log from the log list on the left.
3. In the String Matching filter field, type Adobe AIR.
4. Select all, and then copy and paste into a text file.

Use the contents of this text file to create a support ticket at http://support.learninglikecrazy.com