The link above works for downloading the song (where it says Download Here.) Try both kits and see which one you like better, I obviously did it with STAX Piano 4 Part, which, I guess, is included in my missing drumkits link.
County 5 - Brushes Train, which is, again, I guess, a generic beat for the song. This should be included in the basic BB drum beats that come with the unit when purchase new. Select the country folder and then search for the beat. The user who posted that link may been referring to the BB Mini, in which case, it would be irrelevant to you.
Missing drumkits, most of them, can be found here: