Minor Mishap

First, download and install MapEditor by GuadMaz. Use the instructions provided to do so. There are two methods of installing this. You can drag the file named "scripts" to your GTA directory and it will load the map every time you play automatically, or you can do it manually. To do it manually, drag the file "Small Accident" from the "Manual Install" folder to your GTA Directory. Start up your game, and using MapEditor, select "Load Mod" and type in "Small Accident" without the quotes. The map will load. You'll have to do this every time you play.