Currently Being ModeratedOct 24, 2012 1:27 PM (in response to Adaayala)
Although you announced losing your iphone and didn't ask any specific question, I'll provide the following...
If you activated Find My iPhone (in Settings>icloud), and if the device's batteries still have a charge, the device is not turned off and has not been reset and is connected to wifi, then you can try to track it. Using a computer, log into icloud.com and look at the Find My iPhone page. On a device, invoke the Find My iPhone app (get it for free at the itunes app store) and log into the icloud account.
If it is offline, then one of the requirements listed above is not met (like being connected to wifi, or if the device was stolen and the thief reset it).