Thanks to this mod, you can add Liberty City trees to the Gta Vice City game.

Installation:
Files with the Dff extension in the Files folder, by following these steps.
Drop it into C:\Program Files\Rockstar Games\Grand Theft Auto Vice City\models\gta3.img.

Files with Txd extension in the Files folder by following these steps.
Drop it into C:\Program Files\Rockstar Games\Grand Theft Auto Vice City\models\

InshaAllah you have a good time and I hope you enjoy the mod.