I will be arriving at the TGV train station in Poitiers (from the direction of Paris if that matters) and from there, I want to travel to the Futuroscope-du-Poitou site, where I'd prefer public transportation. What are my best options?

Until now, I've found some information, but it doesn provide me a useful itinerary yet:

• There are apparently many busses leaving from the TGV station in Poitiers
• There is some scheduler for Poitiers, but it confuses me, as there are two TGV stations in the scheduler, which seem to be the same, and close to where I actually need to be. I was expecting the TGV station to be some in the city of Poitiers, instead of the suburbs.

Any advice on a possible itinerary and correction of a mistake is more than welcome!