Please go to the following link for  the mimimum requirements for Adobe Air 3:

http://www.adobe.com/products/air/tech-specs.html

If your machine does not support the minimum requirement you can download the previous version adobe air, version 2.7 using these link:

For Windows : http://airdownload.adobe.com/air/win/download/2.7/AdobeAIRInstaller...

For Mac:          http://airdownload.adobe.com/air/mac/download/2.7/AdobeAIR.dmg

this should work with most other operating system, you can check this by finding the system requirements by going to release notes for under "Adobe AIR 2.7 runtime downloads"

http://kb2.adobe.com/cps/853/cpsid_85304.html

PLEASE NOTE : - You cannot install Traffic LIVE if you are using a Mac PowerPC has it is no longer supported by Adobe AIR. Adobe AIR applications that require Adobe AIR 2 or later cannot be installed or used on a Mac PowerPC. for more info visit : http://kb2.adobe.com/cps/902/cpsid_90205.html

FINALLY,  install Traffic Live using the following link :

http://sohnar.com/$trafficair/downloads/autoupdate/TrafficApplicati...