check main site http://forums.veniceunleashed.net/bf/
After you have downloaded the required files you need to extract them into your Battlefield: Bad Company 2 directory (where BFBC2Game.exe resides). In order to play you need an Emulator Nexus account and a fully up-to-date Bad Company 2 installation (you can update by simply launching BFBC2Updater.exe.)
Then you must launch your game by executing BFBC2Game.exe and login using your Emulator Nexus account. If you don't already have an account you can create one here! below this text is a red window, with download option.
as they said copy project rome in ur game folder then use luncher