AIR Help Link

Deploy:
http://www.adobe.com/devnet/air/articles/signing_air_applications.html

Automatic Update AIR Application:
http://www.adobe.com/cfusion/communityengine/index.cfm?event=showdetails&productId=4&postId=9543

Update:
http://help.adobe.com/en_US/AIR/1.5/devappsflex/WS5b3ccc516d4fbf351e63e3d118666ade46-7ff2.html#WS5b3ccc516d4fbf351e63e3d118676a65d7-7ffd