The .xml file in the download here
http://community.sigames.com/showthread.php?t=162200 has a few specific team adboard configurations. I haven't used this though so I'm not sure if it works or not.
EDIT: The ads that it comes with for MLS are Budwiser, Dick's, Dunkin' Donuts, ESPN 2 HD, FutbolMLS.com, Herbalife, The Home Depot, Makita, Sierra Mist, Major League Soccer, MLSnet.com, MLS W.O.R.K.S., Panasonic, Pepsi, RadioShack, Subway, Volkswagen, and xBox 360.