You walk down the road ahead, keeping the car park on your left, past the dozen or so houses and then bear left. The 49 bus stop is on the corner on your left. It is the terminus stop so there is often a bus waiting empty.
Walk past the station, walk past Bridge car park, and catch the 49 bus, at the terminal stop in Ashurst Road, to St Peters church. 20 minute walk from the Amex.