Once the installation is complete, the game will auto-detect the current screen resolution and launch automatically.
The game will be installed to a 'Battle for Middle-Earth' folder in your Applications. The installation is straightforward-its a 'click next' type of installer, so you won't need to do tons of tweaking that usually comes with Wineskin wrappers. A while back I made a BFME2 port for Mac, and since it was well-received and a lot of people expressed interest in a port for BFME1, I figured I'd make an installer for it as well!