In order for you to track a globe subscriber, you need to invite the person by sending FIND [the name of the person you want to track],[his 11-digit cell no]. Your friend just needs to reply YES SMS message so that your friend will be added to your Tracker List.
Once your friend has successfully registered and is in your Tracker list, you don't need to put his cell phone number every time you want to see his location again. You just simply send:
FIND [your friend's name] and send to 7000.
Hope it may help. You may also dial 143# to register to a tracker or visit Globe Website http://www.globe.com.ph for more details.