How would I make the old Small Island map work?

I have the old version of the map ( when it was Autumn ) from the old files. I tried placing the map file in the level folder of the games files and the game showed both small island maps. I tried both, and they were the new versions, but the files for the old version of the map were in the game's files. Anybody know how I could make this work? Note: The mediafire is a .zip for the old Small island map in case you know how to do it! https://www.mediafire.com/?cme88pue1k3s80s

 

PrzemekWolw has already done this please look the terrains section of the showroom link below.

http://www.beamng.com/threads/13894-DL-in-1st-post-Small-Island-Remeake?highlight=PrzemekWolw