The process for connecting the Guppy to TG via Actility is the same as per the Oyster, aside from the destination URL.

See here: Oyster - Connecting to TG over Actility

Configure your application server, AS routing profile and device to have names relevant to the Guppy.

When adding a route (Step 5 of the Oyster Guide) use the URL specific to your region:

Refer to this article for an explanation of the regions. 

The Guppy has no GPS for location. It will use the triangulated latitude/longitude (if enabled on your gateway), or the lat/long of the gateway which the Guppy detects to have the strongest signal.