Please start at twinesetup.com and then connect your computer to the \||| Twine wireless network.
The light on Twine (look for the tiny hole on the back) indicates its general state. Normally, this light will be off. If it's on, this is what that means:
First, make sure your batteries are good! Double check that you have the correct network name and password/key, and let's try again.
If your Twine gets stuck in one mode, you can remove the batteries/power for 10 seconds to restart it. Twine will try to connect to the last network you gave it, but if you immediately flip Twine on its back, it will go into setup mode.
Once you're connected, you can go to twine.cc to view your Twine's sensors and to configure it to send you notifications.