Carrier Manufacturer How Do I Add My Wireless Carrier/phone Manufacturer To Register My Device And Begin Receiving Yahoo Alerts?

How do I add my wireless carrier/phone manufacturer to register my device and begin receiving yahoo alerts? - carrier manufacturer

Linked http://sites.mobile.yahoo.com I register my mobile device, because my mobile service provider / manufacturer of the phone is not listed (because of recent changes in AT & T, Cingular). Is there another way to get my camera, so they can receive savings alerts from Yahoo!