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.